xtask: Copyright and license lints for more file types

Few files turned out to not have the notes, and they were fixed
manually.
Provide a robust solution by updating house rules in xtask.

Suggested-by: Daniel Prilik  <[email protected]>
Reported-by: Matt Kurjanowicz <[email protected]>
Fixes: #766

Author: romank-msft

xtask/src/tasks/fmt/house_rules/copyright.rs

@@ -17,7 +17,7 @@ pub fn check_copyright(path: &Path, fix: bool) -> anyhow::Result<()> {
         .and_then(|e| e.to_str())
         .unwrap_or_default();
 
-    if !matches!(ext, "rs" | "c" | "proto" | "toml" | "ts" | "js") {
+    if !matches!(ext, "rs" | "c" | "proto" | "toml" | "ts" | "js" | "py" | "ps1" | "config") {
         return Ok(());
     }