Fix: Bumping core to v6.51.1 automatically via 'frameworkpullrequest'…

… Github action (#3574)

Co-authored-by: oliverfoster <oliverfoster@users.noreply.github.com>
Co-authored-by: Cahir O'Doherty <41006337+cahirodoherty-learningpool@users.noreply.github.com>

.gitmodules

@@ -2,4 +2,4 @@
   path = src/core
   branch = master
   url = https://github.com/adaptlearning/adapt-contrib-core
-  installBranch = v6.51.0
+  installBranch = v6.51.1