chore(deps): bump github.com/cloudwego/eino from 0.8.4 to 0.8.5

Bumps [github.com/cloudwego/eino](https://github.com/cloudwego/eino) from 0.8.4 to 0.8.5.
- [Release notes](https://github.com/cloudwego/eino/releases)
- [Commits](cloudwego/eino@v0.8.4...v0.8.5)

---
updated-dependencies:
- dependency-name: github.com/cloudwego/eino
  dependency-version: 0.8.5
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

go.mod

@@ -4,7 +4,7 @@ go 1.25.5
 
 require (
 	github.com/a2aproject/a2a-go v0.3.9
-	github.com/cloudwego/eino v0.8.4
+	github.com/cloudwego/eino v0.8.5
 	github.com/go-playground/validator/v10 v10.30.1
 	github.com/grokify/mogo v0.74.0
 	github.com/plexusone/omnillm v0.14.0

go.sum

@@ -30,8 +30,8 @@ github.com/clipperhouse/uax29/v2 v2.7.0 h1:+gs4oBZ2gPfVrKPthwbMzWZDaAFPGYK72F0NJ
 github.com/clipperhouse/uax29/v2 v2.7.0/go.mod h1:EFJ2TJMRUaplDxHKj1qAEhCtQPW2tJSwu5BF98AuoVM=
 github.com/cloudwego/base64x v0.1.6 h1:t11wG9AECkCDk5fMSoxmufanudBtJ+/HemLstXDLI2M=
 github.com/cloudwego/base64x v0.1.6/go.mod h1:OFcloc187FXDaYHvrNIjxSe8ncn0OOM8gEHfghB2IPU=
-github.com/cloudwego/eino v0.8.4 h1:aFKJK82MmPR6dm5y5J7IXivYSvh4HkcXwf18j6vyhmk=
-github.com/cloudwego/eino v0.8.4/go.mod h1:+2N4nsMPxA6kGBHpH+75JuTfEcGprAMTdsZESrShKpU=
+github.com/cloudwego/eino v0.8.5 h1:ZNRJBiOW8eEOxMKjR4KbxW9Px9+DtETi8k7Yk1cuzv8=
+github.com/cloudwego/eino v0.8.5/go.mod h1:+2N4nsMPxA6kGBHpH+75JuTfEcGprAMTdsZESrShKpU=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=