Disable mentions when resolution note is created (#1696)

# What this PR does

## Which issue(s) this PR fixes

## Checklist

- [ ] Unit, integration, and e2e (if applicable) tests updated
- [ ] Documentation added (or `pr:no public docs` PR label added if not
required)
- [ ] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not
required)

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Changed
+
+- Disable mentions when resolution note is created by @iskhakov ([1696](https://github.com/grafana/oncall/pull/1696))
+
 ## v1.2.7 (2023-04-03)
 
 ### Added
@@ -14,16 +20,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 - Renamed routes from /incidents to /alert-groups ([#1678](https://github.com/grafana/oncall/pull/1678))
+- Display warnings on users page in a clean and consistent way by @iskhakov ([#1681](https://github.com/grafana/oncall/pull/1681))
 
 ### Fixed
 
 - Fix team search when filtering resources by @vadimkerr ([#1680](https://github.com/grafana/oncall/pull/1680))
 - Fix issue when trying to scroll in Safari ([#415](https://github.com/grafana/oncall/issues/415))
 
-### Changed
-
-- Display warnings on users page in a clean and consistent way by @iskhakov ([#1681](https://github.com/grafana/oncall/pull/1681))
-
 ## v1.2.6 (2023-03-30)
 
 ### Fixed

engine/apps/slack/scenarios/resolution_note.py

@@ -352,7 +352,7 @@ class UpdateResolutionNoteStep(scenario_step.ScenarioStep):
 
     def get_resolution_note_blocks(self, resolution_note):
         blocks = []
-        author_verbal = resolution_note.author_verbal(mention=True)
+        author_verbal = resolution_note.author_verbal(mention=False)
         resolution_note_text_block = {
             "type": "section",
             "text": {"type": "mrkdwn", "text": resolution_note.text},