chore(deps): bump slackapi/slack-github-action from 1.26.0 to 1.27.0

Bumps [slackapi/slack-github-action](https://github.com/slackapi/slack-github-action) from 1.26.0 to 1.27.0.
- [Release notes](https://github.com/slackapi/slack-github-action/releases)
- [Commits](slackapi/slack-github-action@70cd7be...37ebaef)

---
updated-dependencies:
- dependency-name: slackapi/slack-github-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/slack-announcement.yml

@@ -37,7 +37,7 @@ jobs:
     steps:
       - name: Send slack announcement
         id: slack
-        uses: slackapi/slack-github-action@70cd7be8e40a46e8b0eced40b0de447bdb42f68e #v1.26.0
+        uses: slackapi/slack-github-action@37ebaef184d7626c5f204ab8d3baff4262dd30f0 #v1.27.0
         with:
           payload: |
             {

.github/workflows/slack-build-notifications.yml

@@ -24,7 +24,7 @@ jobs:
     steps:
       - name: Send custom JSON data to Slack
         id: slack-success
-        uses: slackapi/slack-github-action@70cd7be8e40a46e8b0eced40b0de447bdb42f68e #v1.26.0
+        uses: slackapi/slack-github-action@37ebaef184d7626c5f204ab8d3baff4262dd30f0 #v1.27.0
         with:
           payload: |
             {
@@ -42,7 +42,7 @@ jobs:
     steps:
       - name: Send custom JSON data to Slack
         id: slack-failure
-        uses: slackapi/slack-github-action@70cd7be8e40a46e8b0eced40b0de447bdb42f68e #v1.26.0
+        uses: slackapi/slack-github-action@37ebaef184d7626c5f204ab8d3baff4262dd30f0 #v1.27.0
         with:
           payload: |
             {

.github/workflows/slack-office-hours-design.yml

@@ -13,7 +13,7 @@ jobs:
     steps:
       - name: Send custom JSON data to Slack workflow
         id: slack
-        uses: slackapi/slack-github-action@70cd7be8e40a46e8b0eced40b0de447bdb42f68e #v1.26.0
+        uses: slackapi/slack-github-action@37ebaef184d7626c5f204ab8d3baff4262dd30f0 #v1.27.0
         with:
           payload: |
             {

.github/workflows/slack-office-hours-dev.yml

@@ -12,7 +12,7 @@ jobs:
     steps:
       - name: Send custom JSON data to Slack workflow
         id: slack
-        uses: slackapi/slack-github-action@70cd7be8e40a46e8b0eced40b0de447bdb42f68e #v1.26.0
+        uses: slackapi/slack-github-action@37ebaef184d7626c5f204ab8d3baff4262dd30f0 #v1.27.0
         with:
           payload: |
             {
@@ -105,7 +105,7 @@ jobs:
     steps:
       - name: Send custom JSON data to Slack workflow
         id: slack
-        uses: slackapi/slack-github-action@70cd7be8e40a46e8b0eced40b0de447bdb42f68e #v1.26.0
+        uses: slackapi/slack-github-action@37ebaef184d7626c5f204ab8d3baff4262dd30f0 #v1.27.0
         with:
           payload: |
             {