Merge pull request #9 from NHSDigital/mm-odin-270-check-secrets-support-history

odin-270: ensure check-secrets-history on all reports

Author: matt-mercer

Makefile

@@ -105,3 +105,6 @@ check-secrets:
 
 check-secrets-all:
 	scripts/check-secrets.sh unstaged
+
+check-secrets-history:
+	scripts/check-secrets.sh history