ci: Fix arm64 ci

ChangeLog:

	* .github/workflows/ccpp.yml: Define author name and email while
	creating merge commit.

Signed-off-by: Owen Avery <[email protected]>

Author: powerboat9

.github/workflows/ccpp.yml

@@ -387,6 +387,8 @@ jobs:
       run: |
           git remote add arm-ian 'https://github.com/iains/gcc-darwin-arm64.git';
           git fetch arm-ian;
+          GIT_AUTHOR_NAME=CI \
+          GIT_AUTHOR_EMAIL='ci@invalid' \
           git merge --no-edit a81533316b9b64245d85b352a93e17f302482acd;
 
     - name: Install Deps