build(deps): bump go.sia.tech/mux in the all-dependencies group

Bumps the all-dependencies group with 1 update: [go.sia.tech/mux](https://github.com/SiaFoundation/mux).


Updates `go.sia.tech/mux` from 1.2.0 to 1.3.0
- [Commits](SiaFoundation/mux@v1.2.0...v1.3.0)

---
updated-dependencies:
- dependency-name: go.sia.tech/mux
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: all-dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>

go.mod

@@ -3,7 +3,7 @@ module go.sia.tech/core
 go 1.23.0
 
 require (
-	go.sia.tech/mux v1.2.0
+	go.sia.tech/mux v1.3.0
 	golang.org/x/crypto v0.27.0
 	golang.org/x/sys v0.25.0
 	lukechampine.com/frand v1.4.2

go.sum

@@ -1,7 +1,7 @@
 github.com/aead/chacha20 v0.0.0-20180709150244-8b13a72661da h1:KjTM2ks9d14ZYCvmHS9iAKVt9AyzRSqNU1qabPih5BY=
 github.com/aead/chacha20 v0.0.0-20180709150244-8b13a72661da/go.mod h1:eHEWzANqSiWQsof+nXEI9bUVUyV6F53Fp89EuCh2EAA=
-go.sia.tech/mux v1.2.0 h1:ofa1Us9mdymBbGMY2XH/lSpY8itFsKIo/Aq8zwe+GHU=
-go.sia.tech/mux v1.2.0/go.mod h1:Yyo6wZelOYTyvrHmJZ6aQfRoer3o4xyKQ4NmQLJrBSo=
+go.sia.tech/mux v1.3.0 h1:hgR34IEkqvfBKUJkAzGi31OADeW2y7D6Bmy/Jcbop9c=
+go.sia.tech/mux v1.3.0/go.mod h1:I46++RD4beqA3cW9Xm9SwXbezwPqLvHhVs9HLpDtt58=
 golang.org/x/crypto v0.27.0 h1:GXm2NjJrPaiv/h1tb2UH8QfgC/hOf/+z0p6PT8o1w7A=
 golang.org/x/crypto v0.27.0/go.mod h1:1Xngt8kV6Dvbssa53Ziq6Eqn0HqbZi5Z6R0ZpwQzt70=
 golang.org/x/sys v0.0.0-20190626221950-04f50cda93cb/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=