feat: Add initial AuthzQuerier implementation (#5919)

feat: Add initial AuthzQuerier implementation
- Adds package database/dbauthz that adds a database.Store implementation where each method goes through AuthZ checks
- Implements all database.Store methods on AuthzQuerier
- Updates and fixes unit tests where required
- Updates coderd initialization to use AuthzQuerier if codersdk.ExperimentAuthzQuerier is enabled

enterprise/coderd/coderdenttest/coderdenttest_test.go

@@ -4,6 +4,8 @@ import (
 	"context"
 	"fmt"
 	"net/http"
+	"os"
+	"strings"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -22,6 +24,9 @@ func TestNew(t *testing.T) {
 }
 
 func TestAuthorizeAllEndpoints(t *testing.T) {
+	if strings.Contains(os.Getenv("CODER_EXPERIMENTS_TEST"), string(codersdk.ExperimentAuthzQuerier)) {
+		t.Skip("Skipping TestAuthorizeAllEndpoints for authz_querier experiment")
+	}
 	t.Parallel()
 	client, _, api := coderdenttest.NewWithAPI(t, &coderdenttest.Options{
 		Options: &coderdtest.Options{