Bump the MSRV to 1.61.0 (#1416)

Author: dhardy

Diff for: .github/workflows/test.yml

@@ -47,7 +47,7 @@ jobs:
           - os: ubuntu-latest
             target: x86_64-unknown-linux-gnu
             variant: MSRV
-            toolchain: 1.60.0
+            toolchain: 1.61.0
           - os: ubuntu-latest
             deps: sudo apt-get update ; sudo apt install gcc-multilib
             target: i686-unknown-linux-gnu

Diff for: CHANGELOG.md

@@ -8,6 +8,9 @@ A [separate changelog is kept for rand_core](rand_core/CHANGELOG.md).
 
 You may also find the [Upgrade Guide](https://rust-random.github.io/book/update.html) useful.
 
+## [Unreleased]
+- Bump the MSRV to 1.61.0
+
 ## [0.9.0-alpha.1] - 2024-03-18
 - Add the `Slice::num_choices` method to the Slice distribution (#1402)