CI: drop Go 1.20

1.20 has already reached EOL

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>

Author: AkihiroSuda

.github/workflows/test.yml

@@ -232,7 +232,7 @@ jobs:
         fetch-depth: 1
     - uses: actions/setup-go@v5
       with:
-        go-version: 1.20.x
+        go-version: 1.22.x
     - uses: actions/cache@v4
       with:
         path: ~/.cache/lima/download
@@ -277,7 +277,7 @@ jobs:
         ref: ${{ github.event.pull_request.head.sha }}
     - uses: actions/setup-go@v5
       with:
-        go-version: 1.20.x
+        go-version: 1.22.x
     - uses: actions/cache@v4
       with:
         path: ~/.cache/lima/download

website/netlify.toml

@@ -6,7 +6,7 @@ command = "make -C .. docsy && npm run build:preview"
 publish = "public"
 
 [build.environment]
-GO_VERSION = "1.20.5"
+GO_VERSION = "1.22.1"
 
 [context.production]
 command = "make -C .. docsy && npm run build:production"