Typos Update CONTRIBUTING.md

[0xwitty]

Typos and grammatical inconsistencies correction.

Description and Related Issue(s)

1. "your need" — This phrase appears twice, but it should be "you need" for proper grammar.

   • Original: "Include only secrets your need."
   • Corrected: "Include only secrets you need."

2. "If your changes only related" — This sentence is missing the verb "are."

   • Original: "If your changes only related to the logic of the app..."
   • Corrected: "If your changes are only related to the logic of the app..."

3. "in all test for React components" — It should be "tests" (plural).

   • Original: "please do not import package @testing-library/react directly in your test suites, instead use imports from jest/lib utility."
   • Corrected: "please do not import the package @testing-library/react directly in your test suites, instead use imports from jest/lib utility."

Corrected.

Checklist for PR author

• I have tested these changes locally.
• I added tests to cover any new functionality, following this guide
• Whenever I fix a bug, I include a regression test to ensure that the bug does not reappear silently.
• If I have added, changed, renamed, or removed an environment variable
  • I updated the list of environment variables in the documentation
  • I made the necessary changes to the validator script according to the guide
  • I added "ENVs" label to this pull request