treewide: replace workspace name with new canonical name style

When we completely migrate to bzlmod, the old workspace name is not available anymore. This replaces its usage early.

Change-Id: I976d40a71f56199f1f214f04aab0972ff51a7de3
Reviewed-on: https://review.monogon.dev/c/monogon/+/3228
Tested-by: Jenkins CI
Reviewed-by: Leopold Schabel <leo@monogon.tech>
diff --git a/third_party/dosfstools/dosfstools.bzl b/third_party/dosfstools/dosfstools.bzl
index 61b1ca2..b1984ee 100644
--- a/third_party/dosfstools/dosfstools.bzl
+++ b/third_party/dosfstools/dosfstools.bzl
@@ -1,5 +1,5 @@
 load("@rules_cc//cc:defs.bzl", "cc_binary")
-load("@dev_source_monogon//build/utils:template_file.bzl", "template_file")
+load("@@//build/utils:template_file.bzl", "template_file")
 
 cc_binary(
     name = "fsck",