Update Github/Netlify CI for Go 1.20

Author: hrak

.github/workflows/go-coverage.yml

@@ -11,10 +11,10 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-go@v2
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
         with:
-          go-version: 1.19.3
+          go-version: '1.20'
       - name: Run go test with coverage
         run: COVER_PROFILE=coverage.txt make test
       - name: Codecov upload

netlify.toml

@@ -4,7 +4,7 @@ command = "make -C docs/book build"
 publish = "docs/book/book"
 
 [build.environment]
-GO_VERSION = "1.19"
+GO_VERSION = "1.20"
 
 # Standard Netlify redirects
 [[redirects]]