Merge rust-bitcoin#270: Automated daily update to rustc (to nightly-2026-06-05)

dd7405a Automated update to rustc nightly-2026-06-05 (Update Nightly Rustc Bot)

Pull request description:

  Automated update to Cargo.toml workspace metadata by [create-pull-request](https://github.com/peter-evans/create-pull-request) GitHub action


ACKs for top commit:
  satsfy:
    ACK dd7405a
  apoelstra:
    ACK dd7405a; successfully ran local tests


Tree-SHA512: 7de91126a7200dc905bdd7a4e58480d6e88096b92de233db79af7a545dbfb7d431415fb97feedde406dacc944fcce7ecebaacac7da8e793943d55fe4360ec384

Author: apoelstra

Cargo.toml

@@ -13,7 +13,7 @@ edition = "2018"
 rust-version = "1.56.1"
 
 [package.metadata.rbmt.toolchains]
-nightly = "nightly-2026-05-22"
+nightly = "nightly-2026-06-05"
 stable = "stable"
 
 [features]