Retire VeggieSeasons (really this time) (#2724)

Removes VeggieSeaons 

## Pre-launch Checklist

- [x] I read the [Flutter Style Guide] _recently_, and have followed its
advice.
- [x] I signed the [CLA].
- [x] I read the [Contributors Guide].
- [x] I have added sample code updates to the [changelog].
- [x] I updated/added relevant documentation (doc comments with `///`).

---------

Co-authored-by: Loïc Sharma <737941+loic-sharma@users.noreply.github.com>

Author: ericwindmill

.github/workflows/main.yml

@@ -25,7 +25,7 @@ jobs:
       fail-fast: false
       matrix:
         flutter_version: [stable, beta]
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-latest, macos-latest]
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
       - uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165

experimental/README.md

@@ -12,7 +12,7 @@ dependencies:
   flutter:
     sdk: flutter
   cupertino_icons: ^1.0.2
-  meta: 1.16.0
+  meta: ^1.16.0
   provider: ^6.0.2
   window_size:
     git:

flutter_maps_firestore/README.md

@@ -46,6 +46,5 @@ workspace:
   - simplistic_editor
   - testing_app
   - tool
-  - veggieseasons
   - web_embedding/element_embedding_demo
   - web_embedding/ng-flutter/flutter