Bump go version to 1.21.6

Signed-off-by: Yash Sethiya <[email protected]>

.github/workflows/golangci-lint.yml

@@ -15,7 +15,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v3
         with:
-          go-version: "1.21.3"
+          go-version: "1.21.6"
       - uses: actions/checkout@v2
         with:
           fetch-depth: '0'

.github/workflows/release.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v3
         with:
-          go-version: 1.21.3
+          go-version: 1.21.6
 
       - name: Set up Cosign
         uses: sigstore/cosign-installer@v3

.github/workflows/test-gh.yml

@@ -29,7 +29,7 @@ jobs:
     - name: Set up Go 1.x
       uses: actions/setup-go@v3
       with:
-        go-version: "1.21.3"
+        go-version: "1.21.6"
     - name: Check out code into the Go module directory
       uses: actions/[email protected]
       with:

.github/workflows/trivy-scan.yml

@@ -10,7 +10,7 @@ jobs:
     with:
       repo: carvel-dev/kbld
       tool: kbld
-      goVersion: 1.21.3
+      goVersion: 1.21.6
     secrets:
       githubToken: ${{ secrets.GITHUB_TOKEN }}
       slackWebhookURL: ${{ secrets.SLACK_WEBHOOK_URL }}