Bump ko-build/setup-ko from 0.8 to 0.9

Bumps [ko-build/setup-ko](https://github.com/ko-build/setup-ko) from 0.8 to 0.9.
- [Release notes](https://github.com/ko-build/setup-ko/releases)
- [Commits](ko-build/setup-ko@v0.8...v0.9)

---
updated-dependencies:
- dependency-name: ko-build/setup-ko
  dependency-version: '0.9'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/e2e-matrix.yml

@@ -36,7 +36,7 @@ jobs:
     - uses: actions/setup-go@f111f3307d8850f501ac008e886eec1fd1932a34  # v5.3.0
       with:
         go-version-file: "go.mod"
-    - uses: ko-build/setup-ko@v0.8
+    - uses: ko-build/setup-ko@v0.9
 
     - name: Install Dependencies
       working-directory: ./