Bump package version for post release (#10955)

* Bump package version for post release

The 0.25.2 release had a number of packaging issues relating to CI and
versioning. This commit bumps the terra package version to 0.25.2.post0
which is a post-release notation that is pep440 compliant. The actual
version.txt file is not updated in this PR because we still want it to
show as 0.25.2 for `qiskit.__version__`, this is just a re-packaging of
the 0.25.2 release.

* Update package pin in qiskit_pkg to the post release

* Use qiskit-terra 0.25.2.1 instead of 0.25.2.post0

The use of a post-release is potentially problematic for downstream
consumers/re-packagers. To make it easier for those use cases this
commit switches from an explicit post release to using 0.25.2.1 which
other tools will treat as newer than 0.25.2.

qiskit_pkg/setup.py

@@ -26,7 +26,7 @@
 with open(README_PATH) as readme_file:
     README = readme_file.read()
 
-requirements = ["qiskit-terra==0.25.2"]
+requirements = ["qiskit-terra==0.25.2.1"]
 
 setup(
     name="qiskit",

setup.py

@@ -59,7 +59,7 @@
 
 setup(
     name="qiskit-terra",
-    version="0.25.2",
+    version="0.25.2.1",
     description="Software for developing quantum computing programs",
     long_description=README,
     long_description_content_type="text/markdown",