fix(crc32c): escape the version dot and anchor the pyenv check regex

[chalmerlowe]

Problem

The OS X python wheel build script (build_python_wheel.sh) checks if a Python version is installed in pyenv before building:

if [ -z "$(pyenv versions --bare | grep $version)" ]

When $version is 3.14, this expands to grep 3.14. Because the dot (.) is not escaped, it is treated as a wildcard and will also match the substring 3.13.14 (which contains 3.14 at the end). This results in a false positive, causing the script to skip compiling Python 3.14. The script then fails when executing pyenv shell 3.14 with a "version not installed" error.

Solution

Escape the version dots in bash: ${version//./\.}.
Anchor the grep match with line start (^) and word boundaries (\b) to ensure it only matches the exact version line (e.g. ^3\.14\b instead of matching 3.13.14).
Applied this fix to both build_python_wheel.sh and publish_python_wheel.sh.

[gemini-code-assist]

Code Review

This pull request improves Python version matching in macOS build and publish scripts by escaping dots and using anchors/word boundaries in grep patterns. The feedback suggests refactoring the bash conditional checks from [ -z "$(pipeline | grep ...)" ] to a more idiomatic and efficient if ! pipeline | grep -q ...; then pattern to avoid unnecessary subshells and string comparisons.