docs(homepage): add banner for end-of-support v1 (#1879)

Author: leandrodamascena

Diff for: docs/overrides/main.html

@@ -1,5 +1,10 @@
 {% extends "base.html" %}
 
+{% block announce %}
+👋 Powertools for Python v1 will no longer receive updates or releases after 31/03/2023!
+We encourage you to read our <a href="/upgrade/#end-of-support-v1">upgrade guide on how to migrate to v2</a>.
+{% endblock %}
+
 {% block outdated %}
   You're not viewing the latest version.
   <a href="{{ '../' ~ base_url }}">

Diff for: docs/upgrade.md

@@ -5,6 +5,12 @@ description: Guide to update between major Powertools versions
 
 <!-- markdownlint-disable MD043 -->
 
+## End of support v1
+
+On March 31st, AWS Lambda Powertools for Python v1 will reach end of support. After that, Powertools v1 will no longer receive updates or releases. If you are still using v1, we encourage you to read our upgrade guide and update to the latest version.
+
+Given our commitment to all of our customers using AWS Lambda Powertools for Python, we will keep [Pypi](https://pypi.org/project/aws-lambda-powertools/) v1 releases and documentation 1.x versions to prevent any disruption.
+
 ## Migrate to v2 from v1
 
 We've made minimal breaking changes to make your transition to v2 as smooth as possible.