Bump undici to latest major version 7.12.0 in packages/comms (#4430)

* Initial plan

* Bump undici to latest major version 7.12.0 in packages/comms

Co-authored-by: GordonSmith <966863+GordonSmith@users.noreply.github.com>

* Remove ^ from undici version for consistency

Co-authored-by: GordonSmith <966863+GordonSmith@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: GordonSmith <966863+GordonSmith@users.noreply.github.com>

Author: Copilot

package-lock.json

@@ -76,7 +76,7 @@
         "@xmldom/xmldom": "0.9.8",
         "abort-controller": "3.0.0",
         "node-fetch": "3.3.2",
-        "undici": "6.21.3"
+        "undici": "7.12.0"
     },
     "devDependencies": {
         "@hpcc-js/esbuild-plugins": "^1.4.8",