Bump sigstore/cosign-installer from 2.5.1 to 2.6.0 (#1045)

* Bump sigstore/cosign-installer from 2.5.1 to 2.6.0

Bumps [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer) from 2.5.1 to 2.6.0.
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](sigstore/cosign-installer@b3413d4...f3c664d)

---
updated-dependencies:
- dependency-name: sigstore/cosign-installer
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

* update version comment

Signed-off-by: cpanato <ctadeu@gmail.com>

Signed-off-by: dependabot[bot] <support@github.com>
Signed-off-by: cpanato <ctadeu@gmail.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: cpanato <ctadeu@gmail.com>

.github/workflows/build.yml

@@ -35,7 +35,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # v3.0.2
-      - uses: sigstore/cosign-installer@b3413d484cc23cf8778c3d2aa361568d4eb54679 # v2.5.1
+      - uses: sigstore/cosign-installer@f3c664df7af409cb4873aa5068053ba9d61a57b6 # v2.6.0
 
       - name: Extract version of Go to use
         run: echo "GOVERSION=$(cat Dockerfile|grep golang | awk ' { print $2 } ' | cut -d '@' -f 1 | cut -d ':' -f 2 | uniq)" >> $GITHUB_ENV