Auto merge of #109644 - pietroalbini:pa-1.68.2, r=pietroalbini

[stable] Prepare Rust 1.68.2

This PR prepares the 1.68.2 point release, including the following Cargo PRs:

* rust-lang/cargo#11883
* rust-lang/cargo#11889

The following PR was also included as a pre-requisite for backporting:

* rust-lang/cargo#11635

cc `@rust-lang/release`
r? `@ghost`

Cargo.lock

@@ -342,7 +342,7 @@ dependencies = [
 
 [[package]]
 name = "cargo"
-version = "0.69.0"
+version = "0.69.1"
 dependencies = [
  "anyhow",
  "base64",

RELEASES.md

@@ -1,3 +1,14 @@
+Version 1.68.2 (2023-03-28)
+===========================
+
+- [Update the GitHub RSA host key bundled within Cargo](https://github.com/rust-lang/cargo/pull/11883).
+  The key was [rotated by GitHub](https://github.blog/2023-03-23-we-updated-our-rsa-ssh-host-key/)
+  on 2023-03-24 after the old one leaked.
+- [Mark the old GitHub RSA host key as revoked](https://github.com/rust-lang/cargo/pull/11889).
+  This will prevent Cargo from accepting the leaked key even when trusted by
+  the system.
+- [Add support for `@revoked` and a better error message for `@cert-authority` in Cargo's SSH host key verification](https://github.com/rust-lang/cargo/pull/11635)
+
 Version 1.68.1 (2023-03-23)
 ===========================
 

src/version

@@ -1 +1 @@
-1.68.1
+1.68.2