Proxy iplocate IP databases via the existing github remote

Add patterns to the github.com generic remote for the iplocate ip-to-asn /
ip-to-country databases rather than standing up a new remote. The files are
Git-LFS, so the /raw/ path redirects to media.githubusercontent.com; the github
remote already follows github's cross-host redirects (as it does for release
assets), and the raw path returns the real bytes (verified: 12MB zip / 78MB mmdb).
Marked mutable (branch content).

config/remote_generic/github.yaml

@@ -5,6 +5,9 @@ mutable_ttl: 7200
 mutable_patterns:
   - ".*/archive/refs/heads/.*.tar.gz$"
   - "stalwartlabs/webadmin/releases/latest/download/webadmin.zip$"
+  # iplocate IP databases (Git-LFS; the /raw/ path redirects to the LFS media host).
+  - "iplocate/ip-address-databases/raw/.*/ip-to-asn/.*"
+  - "iplocate/ip-address-databases/raw/.*/ip-to-country/.*"
 patterns:
   - ".*/archive/refs/tags/.*.tar.gz$"
   - "ahmetb/kubectx/.*/kubectx_.*_linux_x86_64.tar.gz$"

config/remote_generic/iplocate.yaml

@@ -1,10 +0,0 @@
-base_url: https://media.githubusercontent.com
-description: iplocate IP address databases (ip-to-asn / ip-to-country), served via GitHub LFS media
-immutable_ttl: 0
-# The databases update on the main branch; re-check upstream daily (matches the
-# ASN expander's cache cadence).
-mutable_ttl: 86400
-mutable_patterns:
-  # LFS objects are served from media.githubusercontent.com/media/<owner>/<repo>/<ref>/<path>.
-  - "media/iplocate/ip-address-databases/.*/ip-to-asn/.*"
-  - "media/iplocate/ip-address-databases/.*/ip-to-country/.*"