Add explicit permissions to workflow jobs for security

Co-authored-by: Creeper19472 <38857196+Creeper19472@users.noreply.github.com>

Author: Copilot

.github/workflows/build-python.yml

@@ -23,6 +23,8 @@ jobs:
   build-android:
     name: Build Python for Android
     runs-on: ubuntu-latest
+    permissions:
+      contents: write  # Required for uploading to releases
     env:
       NDK_VERSION: r27
 
@@ -77,6 +79,8 @@ jobs:
   build-darwin:
     name: Build Python for iOS and macOS
     runs-on: macos-latest
+    permissions:
+      contents: write  # Required for uploading to releases
 
     steps:
       - name: Checkout code
@@ -143,6 +147,8 @@ jobs:
   build-linux:
     name: Build Python for Linux
     runs-on: ubuntu-latest
+    permissions:
+      contents: write  # Required for uploading to releases
 
     steps:
       - name: Checkout code
@@ -203,6 +209,8 @@ jobs:
   build-windows:
     name: Build Python for Windows
     runs-on: windows-latest
+    permissions:
+      contents: write  # Required for uploading to releases
 
     steps:
       - name: Checkout code