Bump protocol-http1 from 0.15.0 to 0.15.1 (#663)

Bumps [protocol-http1](https://github.com/socketry/protocol-http1) from 0.15.0 to 0.15.1.
- [Changelog](https://github.com/socketry/protocol-http1/blob/main/release.cert)
- [Commits](socketry/protocol-http1@v0.15.0...v0.15.1)

---
updated-dependencies:
- dependency-name: protocol-http1
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: PaulDoyle-DEFRA <[email protected]>

Gemfile.lock

@@ -294,8 +294,8 @@ GEM
       cliver (~> 0.3.1)
       websocket-driver (>= 0.2.0)
     protocol-hpack (1.4.2)
-    protocol-http (0.24.2)
-    protocol-http1 (0.15.0)
+    protocol-http (0.24.7)
+    protocol-http1 (0.15.1)
       protocol-http (~> 0.22)
     protocol-http2 (0.15.1)
       protocol-hpack (~> 1.4)