build(deps): bump github.com/eclipse/paho.mqtt.golang

Bumps [github.com/eclipse/paho.mqtt.golang](https://github.com/eclipse/paho.mqtt.golang) from 1.5.0 to 1.5.1.
- [Release notes](https://github.com/eclipse/paho.mqtt.golang/releases)
- [Commits](https://github.com/eclipse/paho.mqtt.golang/compare/v1.5.0...v1.5.1)

---
updated-dependencies:
- dependency-name: github.com/eclipse/paho.mqtt.golang
  dependency-version: 1.5.1
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/ci.yml

@@ -12,8 +12,8 @@ jobs:
     strategy:
       matrix:
         go:
-        - '1.23'
         - '1.24'
+        - '1.25'
       fail-fast: false
     env:
       GO111MODULE: on