ci(coverage): add gcovr exclusions

Author: ReenigneArcher

.github/workflows/ci.yml

@@ -161,6 +161,9 @@ jobs:
           ${{ steps.python-path.outputs.python-path }} -m gcovr -r .. \
             --exclude '.*tests/.*' \
             --exclude '.*third-party/.*' \
+            --exclude-noncode-lines \
+            --exclude-throw-branches \
+            --exclude-unreachable-branches \
             --xml-pretty \
             -o coverage.xml