Fix syntax issues on script + enable caching for node modules

Signed-off-by: Andrei Jiroh Eugenio Halili <ajhalili2006@gmail.com>

.gitlab/ci/00-global.gitlab-ci.yml

@@ -9,9 +9,14 @@ default:
   before_script:
     - apk add bash coreutils wget
     - |
-      echo WORKSPACE_PATH$PWD | tee ~/.librc >> /dev/null
+      echo WORKSPACE_PATH=$PWD | tee ~/.librc >> /dev/null
       echo CREATED_AT=1650520343 | tee -a ~/.librc >> /dev/null
       echo STDLIBRC | base64 -d | tee -a ~/.librc >> /dev/null
     - |
-      wget --header="Authorization: bearer $SNIPPET_BYPASS_TOKEN" $ENV_JSON_FILE" -O ./env.json
+      wget --header="Authorization: bearer $SNIPPET_BYPASS_TOKEN" "$ENV_JSON_FILE" -O ./env.json
     - npm i
+  cache:
+    key: "deps-cache-$CI_COMMIT_BRANCH"
+    paths:
+      - node_modules/
+