Bump py-actions/py-dependency-install from 2.1.0 to 3

Bumps [py-actions/py-dependency-install](https://github.com/py-actions/py-dependency-install) from 2.1.0 to 3.
- [Release notes](https://github.com/py-actions/py-dependency-install/releases)
- [Changelog](https://github.com/py-actions/py-dependency-install/blob/master/CHANGELOG.md)
- [Commits](py-actions/py-dependency-install@v2.1.0...v3)

---
updated-dependencies:
- dependency-name: py-actions/py-dependency-install
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/ci.yml

@@ -36,7 +36,7 @@ jobs:
         restore-keys: |
             pip-lint-
     - name: Install dependencies
-      uses: py-actions/py-dependency-install@v2.1.0
+      uses: py-actions/py-dependency-install@v3
       with:
         path: tests/requirements.txt
     - name: Run mypy
@@ -106,7 +106,7 @@ jobs:
         restore-keys: |
             pip-ci-${{ runner.os }}-${{ matrix.pyver }}
     - name: Install dependencies
-      uses: py-actions/py-dependency-install@v2.1.0
+      uses: py-actions/py-dependency-install@v3
       with:
         path: tests/requirements.txt
     - name: Install uvloop