chore(ci): remove dead Codecov upload steps + lock pins

.github/workflows/actions.lock

@@ -25,7 +25,6 @@ workflows:
     '.github/workflows/elixir-ci.yml':
         - 'actions/cache@v6.1.0'
         - 'actions/checkout@v7.0.1'
-        - 'codecov/codecov-action@v7.1.0'
         - 'erlef/setup-beam@v1.24.1'
     '.github/workflows/fuzz.yml':
         - 'actions/checkout@v7.0.1'
@@ -49,7 +48,6 @@ workflows:
     '.github/workflows/rust-ci.yml':
         - 'actions/checkout@v7.0.1'
         - 'actions/upload-artifact@v7.0.1'
-        - 'codecov/codecov-action@v7.1.0'
         - 'dtolnay/rust-toolchain@stable'
         - 'rustsec/audit-check@v2.0.0'
         - 'taiki-e/install-action@v2.87.13'
@@ -107,13 +105,6 @@ dependencies:
         repo_id: 496012378
         uses:
             - 'actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f'
-    'codecov/codecov-action@v7.1.0':
-        ref: 'v7.1.0'
-        commit: 'sha1-0b35c9ecc4f0529d0eb674914510c22f85b196b4'
-        owner_id: 8226205
-        repo_id: 200299178
-        uses:
-            - 'actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd'
     'dtolnay/rust-toolchain@stable':
         ref: 'stable'
         commit: 'sha1-6bed0761d98439e5a578e2877258200ad565ba87'

.github/workflows/elixir-ci.yml

@@ -91,7 +91,6 @@ jobs:
     # Unit-test coverage only: the federation adapters are exercised by the
     # :integration suite (live databases; excluded in CI) and are skipped in
     # coveralls.json, so they don't dilute the unit-coverage denominator.
-    name: ExCoveralls (unit, gate in coveralls.json)
     runs-on: ubuntu-latest
     timeout-minutes: 60
     defaults:
@@ -133,13 +132,6 @@ jobs:
         run: mix deps.get
       - if: steps.detect.outputs.relevant == 'true'
         run: mix coveralls.json
-      - if: steps.detect.outputs.relevant == 'true'
-        uses: codecov/codecov-action@v7.1.0
-        with:
-          files: elixir-orchestration/cover/excoveralls.json
-          flags: elixir
-          fail_ci_if_error: false
-        continue-on-error: true
 
   bench-compile:
     name: benchee scripts compile

.github/workflows/rust-ci.yml

@@ -112,12 +112,6 @@ jobs:
       - uses: taiki-e/install-action@v2.87.13
       - name: Generate lcov report
         run: cargo llvm-cov --workspace --lcov --output-path lcov.info
-      - uses: codecov/codecov-action@v7.1.0
-        with:
-          files: lcov.info
-          flags: rust
-          fail_ci_if_error: false
-        continue-on-error: true
       - name: Enforce minimum coverage
         run: cargo llvm-cov --workspace --summary-only --fail-under-lines 60