fix: update safe output regex and the docs (#1805)

Co-authored-by: jackton1 <jackton1@users.noreply.github.com>
Co-authored-by: GitHub Action <action@github.com>
Co-authored-by: Tonye Jack <jtonye@ymail.com>

src/utils.ts

@@ -1355,7 +1355,10 @@ export const setOutput = async ({
 
   // if safeOutput is true, escape special characters for bash shell
   if (safeOutput) {
-    cleanedValue = cleanedValue.replace(/[$()`|&;]/g, '\\$&')
+    cleanedValue = cleanedValue.replace(
+      /[^\x20-\x7E]|[:*?"<>|;`$()&!]/g,
+      '\\$&'
+    )
   }
 
   core.setOutput(key, cleanedValue)