CI: Attempt to fix "is TTY" issues.

.github/workflows/ci.yml

@@ -39,6 +39,8 @@ jobs:
       - name: Build Setup
         uses: ./.github/actions/build_setup
       - name: Run tests
+        # https://github.com/actions/runner/issues/241, required to make the stdin.isterminal() conditionals work.
+        shell: 'script --quiet --return --command "bash {0}"'
         run: cargo test --all-features -- --include-ignored --nocapture
   clippy:
     name: Lint
@@ -91,6 +93,8 @@ jobs:
       - name: Install cargo-llvm-cov
         uses: taiki-e/install-action@cargo-llvm-cov
       - name: Generate code coverage
+        # https://github.com/actions/runner/issues/241, required to make the stdin.isterminal() conditionals work.
+        shell: 'script --quiet --return --command "bash {0}"'
         run: cargo llvm-cov --all-features --workspace --lcov --output-path lcov.info
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v3