Update Dockerfile

Dockerfile

@@ -1,17 +1,8 @@
 FROM node:lts-slim
 
-LABEL "com.github.actions.name"="gh-actions-nodejs"
-LABEL "com.github.actions.description"="Node.js For Github Actions"
-LABEL "com.github.actions.icon"="box"
-LABEL "com.github.actions.color"="green"
-
-LABEL "repository"="https://github.com/Slishee/github-actions-nodejs"
-LABEL "homepage"="https://github.com/Slishee/github-actions-nodejs"
-LABEL "maintainer"="Linework IT <lineworkit@gmail.com>"
-
 RUN \
-    curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add - && \
-    echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list && \
+    curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - && \
+    echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list && \
     apt-get update -y && \
     apt-get install -y git yarn