Fix Pypi release version error (#163)

* Fix Pypi release version error

Due to recent Git security feature: https://github.blog/2022-04-12-git-security-vulnerability-announced/, Git requires repository folder to be owned and accessed by the same user, or add the folder to safe directory, otherwise, git commands cannot be successfully executed and thus the correct PECOS version could not be retrieved.

* Add extra git command checks

.github/build_pypi_wheel.sh

@@ -1,6 +1,13 @@
 #!/bin/bash
 set -e
 
+# Git requires repository folder to be owned and accessed by the same user, or add the folder to safe directory
+# Otherwise, git commands cannot be successfully executed and thus correct PECOS version could not be retrieved
+# See: https://github.blog/2022-04-12-git-security-vulnerability-announced/
+git config --global --add safe.directory /$DOCKER_MNT
+PECOS_TAG=$(cd $DOCKER_MNT && git describe  --tags --abbrev=0)
+echo "Building wheel for PECOS $PECOS_TAG..."
+
 # Get pip
 echo "Build wheel using Python version $PIP_VER..."
 PIP=$(ls /opt/python/cp${PIP_VER//./}-cp*/bin/pip)