Change strings to booleans

Author: calebzulawski

action.yml

@@ -24,7 +24,7 @@ inputs:
   disk-cache:
     description: Cache actions outputs based on BUILD
     required: false
-    default: "false"
+    default: false
   max-disk-cache-size:
     description: Maximum disk cache size, in GB
     required: false
@@ -48,7 +48,7 @@ inputs:
   repository-cache:
     description: Cache repositories based on MODULE.bazel/WORKSPACE
     required: false
-    default: "false"
+    default: false
   max-repository-cache-size:
     description: Maximum repository cache size, in GB
     required: false