give depandabot access to flatmap-examples project

.github/dependabot.yml

@@ -25,6 +25,13 @@ updates:
       - dependencies
     ignore:
       - dependency-name: "com.onthegomap.flatmap:*"
+    registries:
+      github-flatmap:
+        type: maven-repository
+        url: https://maven.pkg.github.com/onthegomap
+        # workaround for github maven packages not supporting anonymous access (https://github.community/t/download-from-github-package-registry-without-authentication/14407/111)
+        username: 'flatmapbot'
+        password: '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'
   - package-ecosystem: github-actions
     directory: "/"
     open-pull-requests-limit: 1