Bump clang-format version from 10 to 11

This commit bumps the version of clang-format used from 10 to 11 as this
is the oldest version of clang-format which is readily available on
Ubuntu 22.04.

Author: thomasspriggs

.github/workflows/pull-request-check-clang-format.sh

@@ -7,7 +7,7 @@ set -e
 echo "Pull request's base branch is: ${BASE_BRANCH}"
 echo "Pull request's merge branch is: ${MERGE_BRANCH}"
 echo "Pull request's source branch is: ${GITHUB_HEAD_REF}"
-clang-format-10 --version
+clang-format-11 --version
 
 # The checkout action leaves us in detatched head state. The following line
 # names the checked out commit, for simpler reference later.
@@ -26,7 +26,7 @@ echo "Checking for formatting errors introduced since $MERGE_BASE"
 
 # Do the checking. "eval" is used so that quotes (as inserted into $EXCLUDES
 # above) are not interpreted as parts of file names.
-eval git-clang-format --binary clang-format-10 $MERGE_BASE -- $EXCLUDES
+eval git-clang-format --binary clang-format-11 $MERGE_BASE -- $EXCLUDES
 git diff > formatted.diff
 if [[ -s formatted.diff ]] ; then
   echo 'Formatting error! The following diff shows the required changes'

.github/workflows/pull-request-checks.yaml

@@ -611,8 +611,8 @@ jobs:
           DEBIAN_FRONTEND: noninteractive
         run: |
           sudo apt-get update
-          sudo apt-get install --no-install-recommends -yq clang-format
-      - name: Check updated lines of code match clang-format-10 style
+          sudo apt-get install --no-install-recommends -yq clang-format-11
+      - name: Check updated lines of code match clang-format-11 style
         env:
           BASE_BRANCH: ${{ github.base_ref }}
           MERGE_BRANCH: ${{ github.ref }}