Upgrade analyzer to <15.0.0 in shelf_router_generator (#533)

pkgs/shelf_router_generator/CHANGELOG.md

diff --git a/pkgs/shelf_router_generator/CHANGELOG.md b/pkgs/shelf_router_generator/CHANGELOG.md
index ae483b7..79f67bd 100644
--- a/pkgs/shelf_router_generator/CHANGELOG.md
+++ b/pkgs/shelf_router_generator/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.1.5
+
+* Support `analyzer` versions up to `14.x`.
+
 ## 1.1.4
 
 * Support `analyzer: '^10.0.0'`

pkgs/shelf_router_generator/pubspec.yaml

diff --git a/pkgs/shelf_router_generator/pubspec.yaml b/pkgs/shelf_router_generator/pubspec.yaml
index 105e1f7..cefc418 100644
--- a/pkgs/shelf_router_generator/pubspec.yaml
+++ b/pkgs/shelf_router_generator/pubspec.yaml
@@ -1,5 +1,5 @@
 name: shelf_router_generator
-version: 1.1.4
+version: 1.1.5
 description: >
   A package:build-compatible builder for generating request routers for the
   shelf web-framework based on source annotations.
@@ -14,7 +14,7 @@
   sdk: ^3.9.0
 
 dependencies:
-  analyzer: '>=8.1.1 <11.0.0'
+  analyzer: '>=8.1.1 <15.0.0'
   build: ^4.0.0
   build_config: ^1.2.0
   code_builder: ^4.2.0

pkgs/shelf_static/lib/src/util.dart

diff --git a/pkgs/shelf_static/lib/src/util.dart b/pkgs/shelf_static/lib/src/util.dart
index 2d42379..ba62177 100644
--- a/pkgs/shelf_static/lib/src/util.dart
+++ b/pkgs/shelf_static/lib/src/util.dart
@@ -3,6 +3,9 @@
 // BSD-style license that can be found in the LICENSE file.
 
 DateTime toSecondResolution(DateTime dt) {
-  if (dt.millisecond == 0) return dt;
-  return dt.subtract(Duration(milliseconds: dt.millisecond));
+  if (dt.millisecond == 0 && dt.microsecond == 0) return dt;
+  return dt.subtract(Duration(
+    milliseconds: dt.millisecond,
+    microseconds: dt.microsecond,
+  ));
 }