[jwt-cpp] Requires conan 1.50.0 at least

[uilianries]

Specify library name and version: jwt-cpp/0.6.0

fixes #13286

---

• I've read the guidelines for contributing.
• I've followed the PEP8 style guides for Python code in the recipes.
• I've used the latest Conan client version.
• I've tried at least one configuration locally with the conan-center hook activated.

[conan-center-bot]

All green in build 1 (bc4cdae7dc3a5117cd27de72ca17403a14655454):

• jwt-cpp/0.5.1@:
  All packages built successfully! (All logs)

  🔸 Informative: This recipe is not ready for Conan v2

  _{We have started the migration process to Conan v2 and exporting recipes successfully will be required in the future.
  This is just an informative note to gain awareness about the process, no need to take any action. The plan is to enforce smaller steps that are easier to fix and, eventually, this conan export step will work.
  See the recipe migration guide to know more about the changes required.}

  WARN: Name containing special chars is discouraged 'jwt-cpp'
  jwt-cpp/0.5.1: Exporting package recipe
  jwt-cpp/0.5.1 exports: File 'conandata.yml' found. Exporting it...
  jwt-cpp/0.5.1: Copied 1 '.yml' file: conandata.yml
  jwt-cpp/0.5.1 exports: Copied 1 '.yml' file: conandata.yml
  jwt-cpp/0.5.1: Calling export_sources()
  ERROR: jwt-cpp/0.5.1: Error in export_sources() method, line 25
  	self.copy(patch["patch_file"])
  	AttributeError: 'JwtCppConan' object has no attribute 'copy'
  

• jwt-cpp/0.6.0@:
  All packages built successfully! (All logs)

  🔸 Informative: This recipe is not ready for Conan v2

  _{We have started the migration process to Conan v2 and exporting recipes successfully will be required in the future.
  This is just an informative note to gain awareness about the process, no need to take any action. The plan is to enforce smaller steps that are easier to fix and, eventually, this conan export step will work.
  See the recipe migration guide to know more about the changes required.}

  WARN: Name containing special chars is discouraged 'jwt-cpp'
  jwt-cpp/0.6.0: Exporting package recipe
  jwt-cpp/0.6.0 exports: File 'conandata.yml' found. Exporting it...
  jwt-cpp/0.6.0: Copied 1 '.yml' file: conandata.yml
  jwt-cpp/0.6.0 exports: Copied 1 '.yml' file: conandata.yml
  jwt-cpp/0.6.0: Calling export_sources()
  ERROR: jwt-cpp/0.6.0: Error in export_sources() method, line 25
  	self.copy(patch["patch_file"])
  	AttributeError: 'JwtCppConan' object has no attribute 'copy'
  

• jwt-cpp/0.5.0@:
  All packages built successfully! (All logs)

  🔸 Informative: This recipe is not ready for Conan v2

  _{We have started the migration process to Conan v2 and exporting recipes successfully will be required in the future.
  This is just an informative note to gain awareness about the process, no need to take any action. The plan is to enforce smaller steps that are easier to fix and, eventually, this conan export step will work.
  See the recipe migration guide to know more about the changes required.}

  WARN: Name containing special chars is discouraged 'jwt-cpp'
  jwt-cpp/0.5.0: Exporting package recipe
  jwt-cpp/0.5.0 exports: File 'conandata.yml' found. Exporting it...
  jwt-cpp/0.5.0: Copied 1 '.yml' file: conandata.yml
  jwt-cpp/0.5.0 exports: Copied 1 '.yml' file: conandata.yml
  jwt-cpp/0.5.0: Calling export_sources()
  ERROR: jwt-cpp/0.5.0: Error in export_sources() method, line 25
  	self.copy(patch["patch_file"])
  	AttributeError: 'JwtCppConan' object has no attribute 'copy'
  

• jwt-cpp/0.4.0@:
  All packages built successfully! (All logs)

  🔸 Informative: This recipe is not ready for Conan v2

  _{We have started the migration process to Conan v2 and exporting recipes successfully will be required in the future.
  This is just an informative note to gain awareness about the process, no need to take any action. The plan is to enforce smaller steps that are easier to fix and, eventually, this conan export step will work.
  See the recipe migration guide to know more about the changes required.}

  WARN: Name containing special chars is discouraged 'jwt-cpp'
  jwt-cpp/0.4.0: Exporting package recipe
  jwt-cpp/0.4.0 exports: File 'conandata.yml' found. Exporting it...
  jwt-cpp/0.4.0: Copied 1 '.yml' file: conandata.yml
  jwt-cpp/0.4.0 exports: Copied 1 '.yml' file: conandata.yml
  jwt-cpp/0.4.0: Calling export_sources()
  ERROR: jwt-cpp/0.4.0: Error in export_sources() method, line 25
  	self.copy(patch["patch_file"])
  	AttributeError: 'JwtCppConan' object has no attribute 'copy'
  

• jwt-cpp/0.3.1@:
  All packages built successfully! (All logs)

  🔸 Informative: This recipe is not ready for Conan v2

  _{We have started the migration process to Conan v2 and exporting recipes successfully will be required in the future.
  This is just an informative note to gain awareness about the process, no need to take any action. The plan is to enforce smaller steps that are easier to fix and, eventually, this conan export step will work.
  See the recipe migration guide to know more about the changes required.}

  WARN: Name containing special chars is discouraged 'jwt-cpp'
  jwt-cpp/0.3.1: Exporting package recipe
  jwt-cpp/0.3.1 exports: File 'conandata.yml' found. Exporting it...
  jwt-cpp/0.3.1: Copied 1 '.yml' file: conandata.yml
  jwt-cpp/0.3.1 exports: Copied 1 '.yml' file: conandata.yml
  jwt-cpp/0.3.1: Calling export_sources()
  ERROR: jwt-cpp/0.3.1: Error in export_sources() method, line 25
  	self.copy(patch["patch_file"])
  	AttributeError: 'JwtCppConan' object has no attribute 'copy'