build: Upgrade to Go 1.23.6

Author: alexandear

.github/workflows/ci.yml

@@ -30,7 +30,7 @@ jobs:
     - uses: actions/checkout@v4
     - uses: actions/setup-go@v5
       with:
-        go-version: '1.23.5'
+        go-version: '1.23.6'
 
     - name: install gotestsum
       run: go install gotest.tools/gotestsum@latest
@@ -78,6 +78,6 @@ jobs:
     - uses: actions/checkout@v4
     - uses: actions/setup-go@v5
       with:
-        go-version: '1.23.5'
+        go-version: '1.23.6'
     - run: go install golang.org/x/vuln/cmd/govulncheck@latest
     - run: govulncheck ./...