Remove broken shields from README

The shields were updated by a
GitHub Action that apparently is
now unmaintained and broken.
openmls/openmls#1223

README.md

@@ -1,12 +1,14 @@
 <h1 align="center">:clubs::hearts::spades:️:diamonds:️<br/>FreeCell</h1>
 
 <p align="center">
+    <!-- TODO: the github action updating this is broken, should probably find a replacement
     <a style="margin: 0 5px" href="https://github.com/ArmanMielke/freecell-rs/actions">
         <img src="https://img.shields.io/github/workflow/status/ArmanMielke/freecell-rs/build" alt="build">
     </a>
     <a style="margin: 0 5px" href="https://codecov.io/gh/ArmanMielke/freecell-rs">
         <img src="https://img.shields.io/codecov/c/github/ArmanMielke/freecell-rs" alt="coverage">
     </a>
+    -->
     <a style="margin: 0 5px" href="https://crates.io/crates/freecell">
         <img src="https://img.shields.io/crates/v/freecell" alt="crates.io">
     </a>