Fix lint step color

Author: nhooyr

ci/lint/Dockerfile

@@ -3,7 +3,7 @@ FROM codercom/playcicache
 LABEL "com.github.actions.name"="lint"
 LABEL "com.github.actions.description"=""
 LABEL "com.github.actions.icon"="code"
-LABEL "com.github.actions.color"="pink"
+LABEL "com.github.actions.color"="purple"
 
 COPY entrypoint.sh /entrypoint.sh