Update project to go 1.19 (#737)

This is now needed due to recent updates to dependencies.

Signed-off-by: Luiz Carvalho <[email protected]>

.github/workflows/goclean.yml

@@ -6,15 +6,15 @@ on:
       - '**.go'
       - 'go.mod'
       - 'go.sum'
-    branches: 
+    branches:
       - main
       - release-*
   pull_request:
     paths:
       - '**.go'
       - 'go.mod'
       - 'go.sum'
-    branches: 
+    branches:
       - main
       - release-*
   schedule:
@@ -25,12 +25,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3 # check-out repository
-    
+
     - name: Setup Go
       uses: actions/setup-go@v3
       with:
-        go-version: '1.18.0'
-    
+        go-version: '1.19.0'
+
     - name: go vet
       run: |
         # Use in-place vendored dependencies.

go.mod

@@ -1,6 +1,6 @@
 module github.com/tektoncd/chains
 
-go 1.18
+go 1.19
 
 require (
 	cloud.google.com/go/compute/metadata v0.2.3