mkosi: Run two more mkosi commands with sudo

Running some mkosi commands as root and other not can lead to cache
invalidations with the latest version, so make sure we run everything
as root after we've built the tools tree.

.github/workflows/coverage.yml

@@ -148,7 +148,7 @@ jobs:
           sudo --preserve-env mkosi sandbox lcov --ignore-errors inconsistent,inconsistent "${lcov_args[@]}" --output-file build/test/coverage/everything.coverage-info
 
       - name: List coverage report
-        run: mkosi sandbox lcov --ignore-errors inconsistent,inconsistent --list build/test/coverage/everything.coverage-info
+        run: sudo mkosi sandbox lcov --ignore-errors inconsistent,inconsistent --list build/test/coverage/everything.coverage-info
 
       - name: Coveralls
         uses: coverallsapp/github-action@cfd0633edbd2411b532b808ba7a8b5e04f76d2c8

.github/workflows/mkosi.yml

@@ -204,7 +204,7 @@ jobs:
 
       - name: Run integration tests
         run: |
-          if [[ "$(mkosi sandbox meson test --help)" == *"--max-lines"* ]]; then
+          if [[ "$(sudo mkosi sandbox meson test --help)" == *"--max-lines"* ]]; then
               MAX_LINES=(--max-lines 300)
           else
               MAX_LINES=()