Bump MSRV to 1.57 (#161)

FlorianUekermann · web-flow · commit 9650fcb352bc · 2023-02-06T21:29:10.000+01:00
diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
@@ -8,7 +8,7 @@ on:
 env:
   RUST_BACKTRACE: 1
   toolchain_style: stable
-  toolchain_msrv: 1.56
+  toolchain_msrv: 1.57
   toolchain_doc: nightly-2022-12-01
   toolchain_lint: stable
   toolchain_fuzz: nightly-2022-12-01
