ci: introduce header checker (#6)
-rw-r--r-- 1302 .asf.yaml
drwxr-xr-x - .github
-rw-r--r-- 967 .gitignore
-rw-r--r-- 1027 .licenserc.yaml
drwxr-xr-x - .mvn
-rw-r--r-- 755 HEADER
-rw-r--r-- 11357 LICENSE
-rw-r--r-- 167 NOTICE
-rwxr-xr-x 10069 mvnw
-rw-r--r-- 6607 mvnw.cmd
-rw-r--r-- 7604 pom.xml
drwxr-xr-x - runner-core
drwxr-xr-x - runner-plugin-sdk
drwxr-xr-x - runner-plugin
drwxr-xr-x - runner-starter
drwxr-xr-x - sample
drwxr-xr-x - src