upd CI pipelines

Author: lesleysin

.github/workflows/post-merge.yaml

@@ -11,7 +11,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        flutter-version: ["3.24.3", "3.27.4", "3.29.3", "3.32.7"]
+        flutter-version: ["3.27.4", "3.29.3", "3.32.7"]
     steps:
       - uses: actions/checkout@v3
 

.github/workflows/pr.yaml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        flutter-version: ["3.24.3", "3.27.4", "3.29.3", "3.32.7"]
+        flutter-version: ["3.27.4", "3.29.3", "3.32.7"]
     steps:
       - uses: actions/checkout@v3