Prepare 1.2.4 release (#13266)

* Prepare 1.2.4 release

* Update Cargo.lock

* Update releasenotes/notes/prepare-1.2.4-4a855c6e6bf78a4b.yaml

Co-authored-by: Matthew Treinish <mtreinish@kortar.org>

* Update releasenotes/notes/prepare-1.2.4-4a855c6e6bf78a4b.yaml

Co-authored-by: Eric Arellano <14852634+Eric-Arellano@users.noreply.github.com>

---------

Co-authored-by: Matthew Treinish <mtreinish@kortar.org>
Co-authored-by: Eric Arellano <14852634+Eric-Arellano@users.noreply.github.com>

Cargo.toml

@@ -3,7 +3,7 @@ members = ["crates/*"]
 resolver = "2"
 
 [workspace.package]
-version = "1.2.3"
+version = "1.2.4"
 edition = "2021"
 rust-version = "1.70"  # Keep in sync with README.md and rust-toolchain.toml.
 license = "Apache-2.0"

docs/conf.py

@@ -32,7 +32,7 @@
 # The short X.Y version
 version = "1.2"
 # The full version, including alpha/beta/rc tags
-release = "1.2.3"
+release = "1.2.4"
 
 language = "en"
 

qiskit/VERSION.txt

@@ -1 +1 @@
-1.2.3
+1.2.4

releasenotes/notes/fix-qpy-parsing-123-75357c3709e35963.yaml

@@ -6,5 +6,5 @@ fixes:
     would cause an exception with the error message "Qiskit doesn't support
     loading a symengine payload generated with symengine >= 1.0" to be raised
     whenever loading a QPY file that was generated with a different symengine
-    version from the version installed by the loading. This issue could only
+    version from the version installed when loading. This issue could only
     occur in 1.2.3.

releasenotes/notes/prepare-1.2.4-4a855c6e6bf78a4b.yaml

@@ -0,0 +1,6 @@
+---
+prelude: >
+    Qiskit 1.2.4 is a patch release that fixes a QPY problem introduced in the 
+    `yanked <https://peps.python.org/pep-0592/>`__ 1.2.3 bugfix release. In 1.2.3,
+    an error would be raised when loading a QPY file that was generated with 
+    a different symengine version from the version installed when loading.