ci(OS-798): fix changelog update to comply with prettier (#494)

Author: mathewmeconry

.github/workflows/subgraph-deploy.yaml

@@ -52,7 +52,7 @@ jobs:
         working-directory: packages/subgraph
         run: |
           VERSION=$(cat package.json | jq -r .version)
-          sed -i "s/^\#\# \[UPCOMING\]/## [UPCOMING]\n\n\## $VERSION\nOn $(date +'%Y-%m-%d %H:%M:%S')/" "./CHANGELOG.md"
+          sed -i "s/^\#\# \[UPCOMING\]/## [UPCOMING]\n\n\## $VERSION/" "./CHANGELOG.md"
       - uses: planetscale/[email protected]
         with:
           commit_message: 'Update changelog in subgraph'

packages/subgraph/CHANGELOG.md

@@ -8,7 +8,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [UPCOMING]
 
 ## 1.3.1
-On 2023-10-25 15:10:13
 
 ### Added