Fix: GitHub CI

Author: burningtnt

.github/workflows/build.yaml

@@ -174,7 +174,7 @@ jobs:
             -Z build-std-features=default,optimize_for_size
       - name: Upload Artifact
         run: |
-          if [ "{{ matrix.os }}" = "android" ]; then
+          if [ "${{ matrix.os }}" = "android" ]; then
             source="terracotta-${TERRACOTTA_VERSION}-${{ matrix.os }}-${{ matrix.arch }}.so"
             cp "target/${{ matrix.target }}/release/libterracotta.so" "$source"
           else