Upgrade pgx dependency

Fix test that was comparing times directly instead of using Equal.

query_test.go

@@ -684,7 +684,7 @@ func TestQueryRowCoreTypes(t *testing.T) {
 			t.Errorf("%d. Unexpected failure: %v (sql -> %v, queryArgs -> %v)", i, err, tt.sql, tt.queryArgs)
 		}
 
-		if actual != tt.expected {
+		if actual.s != tt.expected.s || actual.f32 != tt.expected.f32 || actual.b != tt.expected.b || !actual.t.Equal(tt.expected.t) || actual.oid != tt.expected.oid {
 			t.Errorf("%d. Expected %v, got %v (sql -> %v, queryArgs -> %v)", i, tt.expected, actual, tt.sql, tt.queryArgs)
 		}