ci: fix abi3 wheel build by specifying python3.9 interpreter (#749)

Author: everpcpc

.github/workflows/bindings.python.yml

@@ -87,7 +87,7 @@ jobs:
             base_args="--release --strip --out dist"
           fi
           if [[ "${{ matrix.wheel }}" == "py39-abi" ]]; then
-            wheel_args="--features py39-abi"
+            wheel_args="--features py39-abi --interpreter python3.9"
           else
             wheel_args="--no-default-features --features cp38 --interpreter python3.8"
           fi

.github/workflows/cron.integration.yml

@@ -64,7 +64,7 @@ jobs:
         run: |
           base_args="--release --strip --out dist"
           if [[ "${{ matrix.wheel }}" == "py39-abi" ]]; then
-            wheel_args="--features py39-abi"
+            wheel_args="--features py39-abi --interpreter python3.9"
           else
             wheel_args="--no-default-features --features cp38 --interpreter python3.8"
           fi