fix extra newline in android SDK version (#414)

Author: snowp

.github/workflows/release_gh.yaml

@@ -75,7 +75,7 @@ jobs:
         with:
           ref: ${{ inputs.sha }}
       - name: 'Update the content of platform/shared/.sdk_version'
-        run: echo "${{ inputs.version }}" > platform/shared/.sdk_version
+        run: echo -n "${{ inputs.version }}" > platform/shared/.sdk_version
       - name: Install Clang
         run: sudo apt-get install -y clang
       - name: Build AAR + artifacts