chore: update hedera protobufs in coderabbit review instructions (hiero-ledger#1986)

Signed-off-by: MontyPokemon <59332150+MonaaEid@users.noreply.github.com>

Author: MonaaEid

.coderabbit.yaml

@@ -1249,12 +1249,12 @@ reviews:
         2. Extract the module name before `_pb2`
            (e.g. `transaction_record` from `transaction_record_pb2`)
         3. Build the canonical URL:
-           `https://github.com/hashgraph/hedera-protobufs/blob/v0.66.0/<path>/<module>.proto`
+           `https://github.com/hashgraph/hedera-protobufs/blob/v0.72.0-rc.2/<path>/<module>.proto`
 
         **Example:**
         ```
         Import:  from hiero_sdk_python.hapi.services import transaction_record_pb2
-        Schema:  https://github.com/hashgraph/hedera-protobufs/blob/v0.66.0/services/transaction_record.proto
+        Schema:  https://github.com/hashgraph/hedera-protobufs/blob/v0.72.0-rc.2/services/transaction_record.proto
         ```
 
         ### Step 3 — Compare the SDK class against the proto schema

CHANGELOG.md

@@ -12,6 +12,7 @@ This changelog is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.
 
 ### Changed
 - Changed pytest version to "pytest>=8.3.4,<10" (#1917)
+- Update protobuf schema version to v0.72.0-rc.2 in `.coderabbit.yaml`
 
 ### Src
 - Updated `generated_proto.py` file to work with new proto version