docs: Create 0.12.0 release notes (#2926)

* docs: Create 0.12.0 release notes

* docs: add job run table enhancement

* Update website/content/docs/release-notes/v0_12_0.mdx

Co-authored-by: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>

* Apply batch of suggestions from code review

Co-authored-by: Robin Beck <stellarsquall@users.noreply.github.com>

* Update website/content/docs/release-notes/v0_12_0.mdx

Co-authored-by: Robin Beck <stellarsquall@users.noreply.github.com>

* docs: adding HCP content

* Update website/content/docs/release-notes/v0_12_0.mdx

Co-authored-by: Robin Beck <stellarsquall@users.noreply.github.com>

* docs: fix typo

---------

Co-authored-by: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
Co-authored-by: Robin Beck <stellarsquall@users.noreply.github.com>

website/data/docs-nav-data.json

@@ -534,6 +534,10 @@
         "title": "Overview",
         "path": "release-notes"
       },
+      {
+        "title": "v0.12.0",
+        "path": "release-notes/v0_12_0"
+      },
       {
         "title": "v0.11.0",
         "path": "release-notes/v0_11_0"