Apply suggestions from code review

Co-authored-by: Aditya Sharad <6874315+adityasharad@users.noreply.github.com>

.github/actions/fetch-codeql/action.yml

@@ -8,7 +8,7 @@ runs:
       run: |
         LATEST=$(gh release list --repo https://github.com/github/codeql-cli-binaries | cut -f 1 | grep -v beta | sort --version-sort | tail -1)
         gh release download --repo https://github.com/github/codeql-cli-binaries --pattern codeql-linux64.zip "$LATEST"
-        unzip -q -d "${{ runner.temp }}" codeql-linux64.zip
-        echo "${{ runner.temp  }}/codeql" >> $GITHUB_PATH
+        unzip -q -d "${RUNNER_TEMP}" codeql-linux64.zip
+        echo "${RUNNER_TEMP}/codeql" >> "${GITHUB_PATH}"
       env:
         GITHUB_TOKEN: ${{ github.token }}

.github/workflows/post-pr-comment.yml

@@ -22,6 +22,7 @@ jobs:
           PR_HEAD_SHA="$(gh api "/repos/${GITHUB_REPOSITORY}/pulls/${PR}" --jq .head.sha)"
           # Check that the pull-request head SHA matches the head SHA of the workflow run
           if [ "${WORKFLOW_RUN_HEAD_SHA}" != "${PR_HEAD_SHA}" ]; then
+            echo "PR head SHA ${PR_HEAD_SHA} does not match workflow_run event SHA ${WORKFLOW_RUN_HEAD_SHA}. Stopping." 1>&2
             exit 1
           fi
           gh pr comment "${PR}" --repo "${GITHUB_REPOSITORY}" -F comment.txt

.github/workflows/qhelp-pr-preview.yml

@@ -31,7 +31,7 @@ jobs:
         run: |
           (git diff -z --name-only --diff-filter=ACMRT HEAD~1 HEAD | grep -z '.qhelp$' | grep -z -v '.inc.qhelp';
            git diff -z --name-only --diff-filter=ACMRT HEAD~1 HEAD | grep -z '.inc.qhelp$' | xargs --null -rn1 basename | xargs --null -rn1 git grep -z -l) |
-           grep -z '.qhelp$' | grep -z -v '^-' | sort -z -u > "${{ runner.temp }}/paths.txt"
+           grep -z '.qhelp$' | grep -z -v '^-' | sort -z -u > "${RUNNER_TEMP}/paths.txt"
 
       - name: QHelp preview
         run: |
@@ -52,7 +52,7 @@ jobs:
                echo '```'
             fi
             echo "</details>"
-          done < "${{ runner.temp }}/paths.txt" >> comment.txt
+          done < "${RUNNER_TEMP}/paths.txt" >> comment.txt
           exit "${EXIT_CODE}"
 
       - if: always()