Update catch2 to support apple silicon (#5)

shaglund · web-flow · commit 1f5164b84dbc · 2021-08-25T14:47:54.000+02:00
diff --git a/externals/Catch2 b/externals/Catch2
@@ -1 +1 @@
-Subproject commit 2f631bb8087a0355d2b23a75a28d936ce237659d
+Subproject commit 5c88067bd339465513af4aec606bd2292f1b594a
