Rollup merge of #74982 - jonas-schievink:relnotes-1.45.2, r=Mark-Simulacrum
Rollup merge of #74982 - jonas-schievink:relnotes-1.45.2, r=Mark-Simulacrum

1.45.2 release notes

(for master)

cc https://github.com/rust-lang/rust/pull/74958

aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust,aidancully/rust,graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust