fix: 修复ci中指定maafw版本不生效的问题 (#24)

Author: Natsuu

.github/workflows/install.yml

@@ -83,6 +83,12 @@ jobs:
           out-file-path: "deps"
           extract: true
 
+      - name: Remove built-in runtime in MFA
+        if: matrix.os != 'android'
+        shell: bash
+        run: |
+          rm -rf MFA/runtimes
+
       - name: Download MFAAvalonia
         if: matrix.os != 'android'
         id: download_mfa