Add version pin information to dependabot configuration

Include links to the motivating issues.

Author: gitosaurus

.github/dependabot.yml

@@ -8,3 +8,17 @@ updates:
     directory: "/"
     schedule:
       interval: "monthly"
+    allow:
+      # NOTE: package PINNED at <21.0.0, see https://github.com/astronomy-commons/lsdb/issues/974
+      - dependency-name: "pyarrow"
+        versions: "<21.0.0"
+      # NOTE: package PINNED at <0.3.0, see https://github.com/astronomy-commons/lsdb/issues/1047
+      - dependency-name: "universal-pathlib"
+        versions: "<0.3.0"
+    ignore:
+      # Ignore major updates for pyarrow, see https://github.com/astronomy-commons/lsdb/issues/974
+      - dependency-name: "pyarrow"
+        update-types: ["version-update:semver-major"]
+      # Ignore major updates for universal-pathlib, see https://github.com/astronomy-commons/lsdb/issues/1047
+      - dependency-name: "universal-pathlib"
+        update-types: ["version-update:semver-major"]