Bump codecov/codecov-action from 3 to 4

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 3 to 4.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v3...v4)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/hypothesis.yml

@@ -29,7 +29,7 @@ jobs:
         run: tox -e hypothesis,coverage
 
       - name: Upload Python coverage to codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           flags: hypothesis-py
           fail_ci_if_error: true

.github/workflows/python.yml

@@ -75,7 +75,7 @@ jobs:
           PYTHONDEVMODE: 1
 
       - name: Upload Python coverage to codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           flags: python
           fail_ci_if_error: true

.github/workflows/rust.yml

@@ -107,7 +107,7 @@ jobs:
         run: cargo tarpaulin --all --all-features --timeout 600 --out xml -- --test-threads 1
 
       - name: Upload Rust coverage to codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           flags: rust
           fail_ci_if_error: true