Bump actions/attest-build-provenance from 1 to 2

Bumps [actions/attest-build-provenance](https://github.com/actions/attest-build-provenance) from 1 to 2.
- [Release notes](https://github.com/actions/attest-build-provenance/releases)
- [Changelog](https://github.com/actions/attest-build-provenance/blob/main/RELEASE.md)
- [Commits](actions/attest-build-provenance@v1...v2)

---
updated-dependencies:
- dependency-name: actions/attest-build-provenance
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/pypi.yml

@@ -36,7 +36,7 @@ jobs:
         run: pipx run build --sdist
 
       - name: Attest GitHub build provenance
-        uses: actions/attest-build-provenance@v1
+        uses: actions/attest-build-provenance@v2
         with:
           subject-path: dist/*.tar.gz
 
@@ -81,7 +81,7 @@ jobs:
         uses: pypa/[email protected]
 
       - name: Attest GitHub build provenance
-        uses: actions/attest-build-provenance@v1
+        uses: actions/attest-build-provenance@v2
         with:
           subject-path: ./wheelhouse/*.whl
 
@@ -116,7 +116,7 @@ jobs:
           PYODIDE=1 python setup.py bdist_wheel --universal
 
       - name: Attest GitHub build provenance
-        uses: actions/attest-build-provenance@v1
+        uses: actions/attest-build-provenance@v2
         with:
           subject-path: dist/*.whl