Bump to go 1.20 (closes #268)

Author: colmsnowplow

.github/workflows/cd.yml

@@ -10,7 +10,8 @@ jobs:
     name: Release
     strategy:
       matrix:
-        go-version: [1.19]
+        # Quotes are required: https://github.com/actions/setup-go/issues/326#issuecomment-1415719692
+        go-version: ['1.20']
         os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}
     env:

.github/workflows/ci.yml

@@ -12,7 +12,8 @@ jobs:
     name: Compile & Test
     strategy:
       matrix:
-        go-version: [1.19]
+        # Quotes are required: https://github.com/actions/setup-go/issues/326#issuecomment-1415719692
+        go-version: ['1.20']
         os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}
     env:

go.mod

@@ -1,6 +1,6 @@
 module github.com/snowplow/snowbridge
 
-go 1.19
+go 1.20
 
 require (
 	cloud.google.com/go v0.110.0 // indirect