Bump frequenz-floss/setup-git-user from 1 to 2

Bumps [frequenz-floss/setup-git-user](https://github.com/frequenz-floss/setup-git-user) from 1 to 2.
- [Release notes](https://github.com/frequenz-floss/setup-git-user/releases)
- [Commits](frequenz-floss/setup-git-user@v1...v2)

---
updated-dependencies:
- dependency-name: frequenz-floss/setup-git-user
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci.yaml

@@ -75,7 +75,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Setup Git user and e-mail
-        uses: frequenz-floss/setup-git-user@v1
+        uses: frequenz-floss/setup-git-user@v2
 
       - name: Set up Python
         uses: actions/setup-python@v4
@@ -151,7 +151,7 @@ jobs:
 
       - name: Setup Git user and e-mail
         if: steps.mike-metadata.outputs.version
-        uses: frequenz-floss/setup-git-user@v1
+        uses: frequenz-floss/setup-git-user@v2
 
       - name: Set up Python
         if: steps.mike-metadata.outputs.version