chore: Upgrade to Go 1.19 (#3617)

This is required as part of #3505.

coderd/httpmw/authorize_test.go

@@ -99,7 +99,9 @@ func TestExtractUserRoles(t *testing.T) {
 			})
 
 			rtr.ServeHTTP(rw, req)
-			require.Equal(t, http.StatusOK, rw.Result().StatusCode)
+			resp := rw.Result()
+			defer resp.Body.Close()
+			require.Equal(t, http.StatusOK, resp.StatusCode)
 		})
 	}
 }

coderd/httpmw/oauth2_test.go

@@ -32,6 +32,7 @@ func (*testOAuth2Provider) TokenSource(_ context.Context, _ *oauth2.Token) oauth
 	return nil
 }
 
+// nolint:bodyclose
 func TestOAuth2(t *testing.T) {
 	t.Parallel()
 	t.Run("NotSetup", func(t *testing.T) {

coderd/httpmw/prometheus_test.go

@@ -17,6 +17,7 @@ import (
 func TestPrometheus(t *testing.T) {
 	t.Parallel()
 	t.Run("All", func(t *testing.T) {
+		t.Parallel()
 		req := httptest.NewRequest("GET", "/", nil)
 		req = req.WithContext(context.WithValue(req.Context(), chi.RouteCtxKey, chi.NewRouteContext()))
 		res := chimw.NewWrapResponseWriter(httptest.NewRecorder(), 0)

coderd/httpmw/ratelimit_test.go

@@ -26,7 +26,9 @@ func TestRateLimit(t *testing.T) {
 			req := httptest.NewRequest("GET", "/", nil)
 			rec := httptest.NewRecorder()
 			rtr.ServeHTTP(rec, req)
-			return rec.Result().StatusCode == http.StatusTooManyRequests
+			resp := rec.Result()
+			defer resp.Body.Close()
+			return resp.StatusCode == http.StatusTooManyRequests
 		}, testutil.WaitShort, testutil.IntervalFast)
 	})
 }