Release workflow: fix env vars of operator-sdk step. (#31)

Author: greyerof

.github/workflows/release.yaml

@@ -62,9 +62,9 @@ jobs:
 
       - name: Download operator-sdk
         env:
-          OPERATOR_SDK_BIN=operator-sdk_linux_amd64
-          OPERATOR_SDK_DL_URL=https://github.com/operator-framework/operator-sdk/releases/download/v1.33.0
-          OPERATOR_SDK_DEST_FOLDER=/usr/local/bin
+          OPERATOR_SDK_BIN: operator-sdk_linux_amd64
+          OPERATOR_SDK_DL_URL: https://github.com/operator-framework/operator-sdk/releases/download/v1.33.0
+          OPERATOR_SDK_DEST_FOLDER: /usr/local/bin
         run: |
           curl --location --remote-name ${OPERATOR_SDK_DL_URL}/${OPERATOR_SDK_BIN}
           chmod +x ${OPERATOR_SDK_BIN}