Update allenporter/flux-local action to v7.5.0 (#699)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/flux-diff.yaml

@@ -16,7 +16,7 @@ jobs:
     steps:
       - name: Setup Flux CLI
         uses: fluxcd/flux2/[email protected]
-      - uses: allenporter/flux-local/action/diff@7.4.0
+      - uses: allenporter/flux-local/action/diff@7.5.0
         id: diff
         with:
           live-branch: master