Bump external/Catch2 from `04382af` to `b5be642` (#1887)

Bumps [external/Catch2](https://github.com/catchorg/Catch2) from `04382af` to `b5be642`.
- [Release notes](https://github.com/catchorg/Catch2/releases)
- [Commits](04382af4c6...b5be642042)

---
updated-dependencies:
- dependency-name: external/Catch2
  dependency-type: direct:production
...

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external/Catch2

@@ -1 +1 @@
-Subproject commit 04382af4c640d801d332191528d11bd7ae5819f3
+Subproject commit b5be6420427331c2bf1160fa7eedf0f5f1145b6b