Updated env vars in pipeline

.drone.yml

@@ -21,7 +21,7 @@ steps:
 - name:  "Run build tool"
   image: "gitea.marquis.site/operations/modpack_buildah"
   settings:
-    modpack__version: "$DRONE_TAG"
+    modpack__version: "${DRONE_TAG}"
     curseforge_apikey:
       from_secret: "curseforge_apikey"
   volumes:
@@ -42,7 +42,7 @@ steps:
     username: "drone-ci"
     password:
       from_secret: "gitea_registry_password"
-    tags: "$DRONE_TAG"
+    tags: "${DRONE_TAG}"
   volumes:
   - name: "server"
     path: "/out/server"
@@ -63,7 +63,7 @@ steps:
     branch:         "master"
     remote_name:    "origin"
     commit:         true
-    commit_message: "Version $DRONE_TAG"
+    commit_message: "Version ${DRONE_TAG}"
 
 - name:  "Create Gitea Release for curse modpack"
   image: "plugins/gitea-release"
@@ -71,8 +71,8 @@ steps:
     api_key:
       from_secret: "gitea_registry_password"
     base_url: "gitea.marquis.site"
-    files:    "/out/curse/*-$DRONE_TAG.zip"
-    title:    "Version $DRONE_TAG"
+    files:    "/out/curse/*-${DRONE_TAG}.zip"
+    title:    "Version ${DRONE_TAG}"
   volumes:
   - name: "curse"
     path: "/out/curse"