[various] align Flutter and Dart SDK constraints (#1927)

* align Flutter and Dart SDK constraints

* update PR template

* update wording to be more generic on number of packagwa

Author: MaikuB

.github/pull_request_template.md

@@ -1 +1 @@
-As this repository hosts two packages, please ensure the PR title starts with the name of the package that it relates to using square brackets (e.g. [flutter_local_notifications]). The contribution guidelines can be found at https://github.com/MaikuB/flutter_local_notifications/blob/master/CONTRIBUTING.md. Please review this as it contains details on what to follow when submitting a PR.
+As this repository hosts multiple packages, please ensure the PR title starts with the name of the package that it relates to using square brackets (e.g. [flutter_local_notifications]). Should the PR more than one package than please prefix the title of the PR with [various] The contribution guidelines can be found at https://github.com/MaikuB/flutter_local_notifications/blob/master/CONTRIBUTING.md. Please review this as it contains details on what to follow when submitting a PR.

flutter_local_notifications/CHANGELOG.md

@@ -1,3 +1,7 @@
+# [14.0.0-dev.3]
+
+* Align Dart SDK constraint with minimum Flutter version (i.e. 3.0)
+
 # [14.0.0-dev.2]
 
 * **Breaking change** the `id` property of the `ActiveNotification` class is now nullable to help indicate that the notification may not have been created by the plugin e.g. it was from Firebase Cloud Messaging. Thanks to the PR from [frankvollebregt](https://github.com/frankvollebregt)

flutter_local_notifications/pubspec.yaml

@@ -2,7 +2,7 @@ name: flutter_local_notifications
 description: A cross platform plugin for displaying and scheduling local
   notifications for Flutter applications with the ability to customise for each
   platform.
-version: 14.0.0-dev.2
+version: 14.0.0-dev.3
 homepage: https://github.com/MaikuB/flutter_local_notifications/tree/master/flutter_local_notifications
 issue_tracker: https://github.com/MaikuB/flutter_local_notifications/issues
 
@@ -11,7 +11,7 @@ dependencies:
   flutter:
     sdk: flutter
   flutter_local_notifications_linux: ^4.0.0-dev.1
-  flutter_local_notifications_platform_interface: ^7.0.0-dev.1
+  flutter_local_notifications_platform_interface: ^7.0.0-dev.2
   timezone: ^0.9.0
 
 dev_dependencies:
@@ -36,5 +36,5 @@ flutter:
         default_package: flutter_local_notifications_linux
 
 environment:
-  sdk: ">=2.15.0 <3.0.0"
+  sdk: ">=2.17.0 <3.0.0"
   flutter: ">=3.0.0"

flutter_local_notifications_platform_interface/CHANGELOG.md

@@ -1,3 +1,7 @@
+## [7.0.0-dev.2]
+
+** Updated minimum Flutter SDK constraint to 3.0 and minimum Dart SDK constraint to 2.17 to align with versions used by actual plugin implementation
+
 ## [7.0.0-dev.1]
 
 * **Breaking change** the `id` property of the `ActiveNotification` class is now nullable to help indicate that the notification may not have been created by the plugin e.g. it was from Firebase Cloud Messaging. Thanks to the PR from [frankvollebregt](https://github.com/frankvollebregt)

flutter_local_notifications_platform_interface/pubspec.yaml

@@ -1,11 +1,11 @@
 name: flutter_local_notifications_platform_interface
 description: A common platform interface for the flutter_local_notifications plugin.
-version: 7.0.0-dev.1
+version: 7.0.0-dev.2
 homepage: https://github.com/MaikuB/flutter_local_notifications/tree/master/flutter_local_notifications_platform_interface
 
 environment:
-  sdk: ">=2.12.0 <3.0.0"
-  flutter: ">=2.2.0"
+  sdk: ">=2.17.0 <3.0.0"
+  flutter: ">=3.0.0"
 
 dependencies:
   flutter: