chore(ci): upgrade golang to 1.19.2 and linter to 1.50.1 (#2526)

Lack of generics support is blocking various dependency upgrades,
so this unblocks that.

Temporarily disabled `checklocks` linter until it is fixed upstream.

.github/workflows/code-coverage.yml

@@ -14,7 +14,7 @@ jobs:
     - name: Set up Go.
       uses: actions/setup-go@v3
       with:
-        go-version: '1.18'
+        go-version: '1.19'
       id: go
     - name: Check out code into the Go module directory
       uses: actions/checkout@v3