Add dependency graph 3-0 release notes (#18198)

* Add dependency graph 3-0 release notes

* Clarify combo of dg issue and logging duplication

* Update data/release-notes/3-0/0.yml

* Update data/release-notes/3-0/1.yml

Co-authored-by: Meg Bird <megbird@github.com>
Co-authored-by: Sarah Schneider <sarahs@users.noreply.github.com>

Author: 3 people

data/release-notes/3-0/0.yml

@@ -124,7 +124,9 @@ sections:
     - 'Duplicated logging to `/var/log/messages`, `/var/log/syslog`, and `/var/log/user.log` results in increased root volume utilization.'
     - Users can dismiss a mandatory message without checking all checkboxes.
     - Repository [deploy keys](/developers/overview/managing-deploy-keys) are unable to be used with repositories containing LFS objects.
-    - Jupyter Notebook rendering in the web UI may fail if the notebook includes non UTF-8 encoded characters.
+    - Juypter Notebook rendering in the web UI may fail if the notebook includes non UTF-8 encoded characters.
+    - Dependency graph fails to parse `setup.py` Python manifest files, resulting in HTTP 500 errors in logs. This, combined with the duplicated logging issue, results in increased root volume utilization.
+    - A race condition can cause dependency graph database migrations to appear to fail.
 
   deprecations:
     - heading: Deprecation of GitHub Enterprise Server 2.19

data/release-notes/3-0/1.yml

@@ -24,6 +24,7 @@ sections:
     - 'The "Prevent repository admins from changing anonymous Git read access" checkbox available in the enterprise account settings could not be successfully enabled or disabled.'
     - 'The modal used to display a mandatory message contained no vertical scrollbar, meaning longer messages could not be viewed in full.'
     - 'Redis would sometimes fail to start after a hard reboot or application crash.'
+    - 'Dependency graph fails to parse `setup.py` Python manifest files, resulting in HTTP 500 errors in logs. This, combined with the duplicated logging issue, results in increased root volume utilization.'
   changes:
     - 'Satisfy requests concurrently when multiple users are downloading the same archive, resulting in improved performance.'
   known_issues:
@@ -36,4 +37,5 @@ sections:
     - 'Duplicated logging to `/var/log/messages`, `/var/log/syslog`, and `/var/log/user.log` results in increased root volume utilization.'
     - 'Users can dismiss a mandatory message without checking all checkboxes.'
     - 'Repository [deploy keys](/developers/overview/managing-deploy-keys) are unable to be used with repositories containing LFS objects.'
-    - 'Jupyter Notebook rendering in the web UI may fail if the notebook includes non UTF-8 encoded characters.'
+    - 'Juypter Notebook rendering in the web UI may fail if the notebook includes non UTF-8 encoded characters.'
+    - 'Dependency graph fails to parse `yarn.lock` Javascript manifest files, resulting in HTTP 500 errors in logs.'