fix ci: miscellaneous chores and fixes

.github/workflows/tests.yml

@@ -36,13 +36,15 @@ jobs:
       - name: Run sccache-cache
         uses: mozilla-actions/sccache-action@89e9040de88b577a072e3760aaf59f585da083af #v0.0.5
         if: ${{ !startsWith(github.head_ref, 'renovate/') }}
+      - name: Install Protoc
+        uses: arduino/setup-protoc@v3
       - run: |
           rustup component add clippy
           # Temporarily allowing dead-code, while denying all other warnings
           cargo clippy --all-features --all-targets -- -A dead-code -D warnings
 
-  test-and-coverage:
-    name: cargo test and coverage
+  test:
+    name: cargo test
     runs-on: ubuntu-latest
     permissions:
       contents: write
@@ -63,14 +65,10 @@ jobs:
       - name: Run sccache-cache
         uses: mozilla-actions/sccache-action@89e9040de88b577a072e3760aaf59f585da083af #v0.0.5
         if: ${{ !startsWith(github.head_ref, 'renovate/') }}
-      - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@cargo-llvm-cov
-      - name: Run tests and generate coverage report
-        run: cargo llvm-cov test --all-features --workspace --lcov --output-path lcov.info
-      - name: Upload coverage to Coveralls
-        uses: coverallsapp/github-action@643bc377ffa44ace6394b2b5d0d3950076de9f63 # v2.3.0
-        with:
-          file: ./lcov.info
+      - name: Install Protoc
+        uses: arduino/setup-protoc@v3
+      - name: Run tests
+        run: cargo test --all-features --workspace
 
   # Cannot do with llvm-cov, see https://github.com/taiki-e/cargo-llvm-cov/issues/2
   test-docs:
@@ -95,6 +93,8 @@ jobs:
       - name: Run sccache-cache
         uses: mozilla-actions/sccache-action@89e9040de88b577a072e3760aaf59f585da083af #v0.0.5
         if: ${{ !startsWith(github.head_ref, 'renovate/') }}
+      - name: Install Protoc
+        uses: arduino/setup-protoc@v3
       - name: Test documentation code snippets
         run: cargo test --doc --all-features --workspace
 
@@ -116,11 +116,13 @@ jobs:
       - name: Run sccache-cache
         uses: mozilla-actions/sccache-action@89e9040de88b577a072e3760aaf59f585da083af #v0.0.5
         if: ${{ !startsWith(github.head_ref, 'renovate/') }}
+      - name: Install Protoc
+        uses: arduino/setup-protoc@v3
       - name: Cargo check
         run: cargo check
 
   audit:
-    name: Cargo Audit 
+    name: cargo audit 
     runs-on: ubuntu-latest
     permissions:
       actions: read
@@ -141,6 +143,8 @@ jobs:
       - name: Run sccache-cache
         uses: mozilla-actions/sccache-action@89e9040de88b577a072e3760aaf59f585da083af #v0.0.5
         if: ${{ !startsWith(github.head_ref, 'renovate/') }}
+      - name: Install Protoc
+        uses: arduino/setup-protoc@v3
       - name: Install Cargo Audit
         run: |
           cargo install cargo-audit