Updated sponsor logos

Author: squidfunk

.github/assets/sponsors/sponsor-posit.png

@@ -86,8 +86,8 @@
   <a href="https://www.elli.eco/en/home" target=_blank><img
     src="https://raw.githubusercontent.com/squidfunk/mkdocs-material/master/.github/assets/sponsors/sponsor-elli.png" height="58"
   /></a>
-  <a href="https://solutions.rstudio.com" target=_blank><img
-    src="https://raw.githubusercontent.com/squidfunk/mkdocs-material/master/.github/assets/sponsors/sponsor-rstudio.png" height="58"
+  <a href="https://docs.posit.co" target=_blank><img
+    src="https://raw.githubusercontent.com/squidfunk/mkdocs-material/master/.github/assets/sponsors/sponsor-posit.png" height="58"
   /></a>
   <a href="https://n8n.io" target=_blank><img
     src="https://raw.githubusercontent.com/squidfunk/mkdocs-material/master/.github/assets/sponsors/sponsor-n8n.png" height="58"

.github/assets/sponsors/sponsor-rstudio.png

@@ -175,7 +175,7 @@ You can cancel your sponsorship anytime.[^5]
 [![Datadog]](https://datadoghq.com/){ target=_blank title="Datadog" }
 [![Zenoss]](https://zenoss.com/){ target=_blank title="Zenoss" }
 [![Elli]](https://www.elli.eco/en/home){ target=_blank title="Elli - A Brand of the Volkswagen Group" }
-[![RStudio]](https://solutions.rstudio.com){ target=_blank title="RStudio" }
+[![Posit]](docs.posit.co){ target=_blank title="Posit" }
 [![n8n]](https://n8n.io){ target=_blank title="n8n" }
 [![Dogado]](https://www.dogado.de){ target=_blank title="Dogado" }
 [![World Wide Technology]](https://wwt.com){ target=_blank title="World Wide Technology" }
@@ -204,7 +204,7 @@ You can cancel your sponsorship anytime.[^5]
   [Datadog]: https://raw.githubusercontent.com/squidfunk/mkdocs-material/master/.github/assets/sponsors/sponsor-datadog.png
   [Zenoss]: https://raw.githubusercontent.com/squidfunk/mkdocs-material/master/.github/assets/sponsors/sponsor-zenoss.png
   [Elli]: https://raw.githubusercontent.com/squidfunk/mkdocs-material/master/.github/assets/sponsors/sponsor-elli.png
-  [RStudio]: https://raw.githubusercontent.com/squidfunk/mkdocs-material/master/.github/assets/sponsors/sponsor-rstudio.png
+  [Posit]: https://raw.githubusercontent.com/squidfunk/mkdocs-material/master/.github/assets/sponsors/sponsor-posit.png
   [n8n]: https://raw.githubusercontent.com/squidfunk/mkdocs-material/master/.github/assets/sponsors/sponsor-n8n.png
   [Dogado]: https://raw.githubusercontent.com/squidfunk/mkdocs-material/master/.github/assets/sponsors/sponsor-dogado.png
   [World Wide Technology]: https://raw.githubusercontent.com/squidfunk/mkdocs-material/master/.github/assets/sponsors/sponsor-wwt.png