ci: make file changes check from master. (#199)

## Types of changes

- [ ] I have read the **CONTRIBUTING** document.
- [ ] My code follows the code style of this project.
- [ ] I have updated the documentation accordingly.
- [ ] I have added tests to cover my changes.
- [ ] All new and existing tests passed.
- [ ] This is **NOT** translation related.

This closes issue #XXX

This is implements feature #YYY

This finishes chore #ZZZ

Reviewed-on: Louvorg/ReaderForSelfoss-multiplatform#199
Co-authored-by: Amine <amine.bouabdallaoui@pm.me>
Co-committed-by: Amine <amine.bouabdallaoui@pm.me>

.gitea/workflows/on_called_build.yml

@@ -11,7 +11,7 @@ jobs:
           fetch-depth: 0
       - name: "Check android app changes"
         id: check-android-changes
-        uses: tj-actions/changed-files@v45
+        uses: tj-actions/changed-files@v46
         with:
           files: |
             androidApp/src/**

.gitea/workflows/on_pr.yml

@@ -31,8 +31,9 @@ jobs:
           fetch-depth: 0
       - name: "Check translations changes"
         id: check-translations-changes
-        uses: tj-actions/changed-files@v45
+        uses: tj-actions/changed-files@v46
         with:
+          base_sha: ${{ github.event.pull_request.base.sha }}
           files: |
             androidApp/src/main/res/values/strings.xml
       - name: upload translation sources