Merge pull request #1835 from JuliaStats/dependabot/github_actions/codecov/codecov-action-4

Bump codecov/codecov-action from 3 to 4

Author: ViralBShah

.github/workflows/CI.yml

@@ -57,8 +57,10 @@ jobs:
             Pkg.instantiate()'
       - run: julia --project=perf perf/samplers.jl
       - uses: julia-actions/julia-processcoverage@v1
-      - uses: codecov/codecov-action@v3
+      - uses: codecov/codecov-action@v4
         with:
+          token: ${{ secrets.CODECOV_TOKEN }} # required
+          fail_ci_if_error: true
           files: lcov.info
   docs:
     name: Documentation