OM 7.0.3 release notes (#133)

<!-- Add a description of your PR here (optional) -->

- [DOCSP-37459](https://jira.mongodb.org/browse/DOCSP-37459)
-
[STAGING](https://preview-mongodbjwilliamsmongo.gatsbyjs.io/ops-manager/DOCSP-37459/release-notes/application/)

- [LATEST BUILD
LOG](https://workerpool-boxgs.mongodbstitch.com/pages/job.html?collName=queue&jobId=65ea46ee6fc5f048506e82eb)

---------

Co-authored-by: Evelyn Rabil <[email protected]>

Author: jwilliams-mongo

source/release-notes/changelogs/mongodb-agent/changelog-mongodb-agent-onprem-v7.0.rst

@@ -1,3 +1,11 @@
+.. _mongodb-107.0.3.8550:
+
+MongoDB Agent 107.0.3.8550
+--------------------------
+
+:ref:`Released with Ops Manager 7.0.3 on 2024-03-07
+<opsmgr-server-7.0.3>`.
+
 .. _mongodb-107.0.2.8531:
 
 MongoDB Agent 107.0.2.8531

source/release-notes/changelogs/ops-manager/changelog-onprem-v7.0.rst

@@ -1,3 +1,29 @@
+.. _opsmgr-server-7.0.3: 
+
+|onprem| Server 7.0.3
+~~~~~~~~~~~~~~~~~~~~~
+
+*Released 2024-03-07*
+
+- Updates the {+mdbagent+} to :ref:`107.0.3.8550-1 <mongodb-107.0.3.8550>`.
+- Fixes a bug where |onprem| upgrades might become stuck
+  when webhook notifications are configured due to ``webhook_url`` 
+  not populating correctly.
+- Adds {+mdbagent+} support for Ubuntu 20.04 and RHEL 9 on ARM.
+- Fixes a bug where the {+mdbagent+} wasn't considering all of 
+  a certificate's :abbr:`SANs (Subject Alternative Names)`.
+- Adds the ability to edit WiredTiger job setting, number of 
+  backup workers, and bandwidth for backups in the
+  :ref:`admin-console`.
+- Adds the ability for |onprem| to automatically choose the
+  number of backup workers based on available CPU cores and
+  memory.
+- Fixes `CVE-2023-52428 <https://cve.mitre.org/cgi-bin/cvename.cgi?name=/CVE-2023-52428>`__
+- Fixes `CVE-2024-25710 <https://cve.mitre.org/cgi-bin/cvename.cgi?name=/CVE-2024-25710>`__
+- Fixes `CVE-2024-26308 <https://cve.mitre.org/cgi-bin/cvename.cgi?name=/CVE-2024-26308>`__
+- Releases {+mongosh+} 2.1.5 to |onprem|. To learn more, see {+mongosh+}
+  :mdb-shell:`Release Notes </changelog/#v2.1.5>`.
+
 .. _opsmgr-server-7.0.2:
 
 |onprem| Server 7.0.2