docs: Update the Supabase logo to a correct one

Author: dshukertjr

BACKERS.md

@@ -32,7 +32,7 @@ PostgREST ongoing development is only possible thanks to our Sponsors and Backer
       </td>
       <td align="center" valign="middle">
         <a href="https://supabase.io?utm_source=postgrest%20backers&utm_medium=open%20source%20partner&utm_campaign=postgrest%20backers%20github&utm_term=homepage" target="_blank">
-          <img width="296px" src="static/supabase.png">
+          <img width="296px" src="static/supabase.svg">
         </a>
       </td>
     </tr>

README.md

@@ -41,7 +41,7 @@ API than you are likely to write from scratch.
       </td>
       <td align="center" valign="middle">
         <a href="https://supabase.io?utm_source=postgrest%20backers&utm_medium=open%20source%20partner&utm_campaign=postgrest%20backers%20github&utm_term=homepage" target="_blank">
-          <img width="296px" src="static/supabase.png">
+          <img width="296px" src="static/supabase.svg">
         </a>
       </td>
     </tr>

docker-hub-readme.md

@@ -38,7 +38,7 @@ write from scratch.
       </td>
       <td align="center" valign="middle">
         <a href="https://supabase.io?utm_source=postgrest%20backers&utm_medium=open%20source%20partner&utm_campaign=postgrest%20backers%20github&utm_term=homepage" target="_blank">
-          <img width="296px" src="https://raw.githubusercontent.com/PostgREST/postgrest/main/static/supabase.png">
+          <img width="296px" src="https://raw.githubusercontent.com/PostgREST/postgrest/main/static/supabase.svg">
         </a>
       </td>
     </tr>

docs/index.rst

@@ -65,12 +65,12 @@ Sponsors
 
   .. container:: img-dark
 
-    .. image:: ../static/supabase-dark.png
+    .. image:: ../static/supabase-dark.svg
       :target: https://supabase.com/?utm_source=postgrest%20backers&utm_medium=open%20source%20partner&utm_campaign=postgrest%20backers%20github&utm_term=homepage
 
   .. container:: img-light
 
-    .. image:: ../static/supabase.png
+    .. image:: ../static/supabase.svg
       :target: https://supabase.com/?utm_source=postgrest%20backers&utm_medium=open%20source%20partner&utm_campaign=postgrest%20backers%20github&utm_term=homepage
 
   .. The static/empty.png(created with `convert -size 320x95 xc:#fcfcfc empty.png`) is an ugly workaround