👷 ci: fix Android signing config for Groovy DSL build.gradle

修正工作流中 Android 签名配置脚本，适配实际项目之 build.gradle（Groovy DSL）：

- 文件名：build.gradle.kts → build.gradle
- signingConfigs 语法：create("release") → release
- 属性赋值：移除 Kotlin DSL 等号（storeFile = → storeFile）
- 正则匹配：signingConfigs.getByName("debug") → signingConfigs.debug

此前因预设 Kotlin DSL 配置文件，致构建失败。今已修正，Android APK 构建当可通行。

Author: iota9star

.github/workflows/build-all-platforms.yml

@@ -114,28 +114,28 @@ jobs:
           printf 'RELEASE_KEY_ALIAS=${{ env.ANDROID_KEY_ALIAS }}\n' >> gradle.properties
           printf 'RELEASE_KEY_PASSWORD=${{ env.ANDROID_KEY_PASSWORD }}\n' >> gradle.properties
 
-          cp build.gradle.kts build.gradle.kts.orig
+          cp build.gradle build.gradle.orig
 
           awk '
           /^android \{/ {
             print
             print ""
             print "    signingConfigs {"
-            print "        create(\"release\") {"
-            print "            storeFile = file(\"${{ env.ANDROID_KEYSTORE_FILE }}\")"
-            print "            storePassword = \"${{ env.ANDROID_KEYSTORE_SECRET }}\""
-            print "            keyAlias = \"${{ env.ANDROID_KEY_ALIAS }}\""
-            print "            keyPassword = \"${{ env.ANDROID_KEY_PASSWORD }}\""
+            print "        release {"
+            print "            storeFile file(\"${{ env.ANDROID_KEYSTORE_FILE }}\")"
+            print "            storePassword \"${{ env.ANDROID_KEYSTORE_SECRET }}\""
+            print "            keyAlias \"${{ env.ANDROID_KEY_ALIAS }}\""
+            print "            keyPassword \"${{ env.ANDROID_KEY_PASSWORD }}\""
             print "        }"
             print "    }"
             next
           }
-          /signingConfig = signingConfigs.getByName\("debug"\)/ {
-            print "            signingConfig = signingConfigs.getByName(\"release\")"
+          /signingConfig = signingConfigs\.debug/ {
+            print "            signingConfig signingConfigs.release"
             next
           }
           { print }
-          ' build.gradle.kts.orig > build.gradle.kts
+          ' build.gradle.orig > build.gradle
 
       - name: Build APK for ${{ matrix.arch }}
         run: |