fix(hooks): add -- to grep for private key pattern

Author: jdalton

.git-hooks/pre-push

@@ -210,7 +210,7 @@ while read local_ref local_sha remote_ref remote_sha; do
         fi
 
         # Check for private keys.
-        if echo "$file_text" | grep -qE '-----BEGIN (RSA |EC |DSA )?PRIVATE KEY-----'; then
+        if echo "$file_text" | grep -qE -- '-----BEGIN (RSA |EC |DSA )?PRIVATE KEY-----'; then
           printf "${RED}✗ BLOCKED: Private key found in: %s${NC}\n" "$file"
           ERRORS=$((ERRORS + 1))
         fi