feat: update promexporter to v1.4.0

- Update promexporter dependency to v1.4.0
- Includes new optional web UI and health endpoint configuration
- Backward compatible - all existing functionality preserved

Author: d0ugal

go.mod

@@ -5,7 +5,7 @@ go 1.25
 toolchain go1.25.3
 
 require (
-	github.com/d0ugal/promexporter v1.3.1
+	github.com/d0ugal/promexporter v1.4.0
 	github.com/prometheus/client_golang v1.23.2
 	gopkg.in/yaml.v3 v3.0.1
 )

go.sum

@@ -10,8 +10,8 @@ github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UF
 github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cloudwego/base64x v0.1.6 h1:t11wG9AECkCDk5fMSoxmufanudBtJ+/HemLstXDLI2M=
 github.com/cloudwego/base64x v0.1.6/go.mod h1:OFcloc187FXDaYHvrNIjxSe8ncn0OOM8gEHfghB2IPU=
-github.com/d0ugal/promexporter v1.3.1 h1:C8z83rZf30YOZzsx2Jdj53i90zQHqVnuxP0Nm10Y3h8=
-github.com/d0ugal/promexporter v1.3.1/go.mod h1:LFrknRg+kELcF9EIAnLayJ5Yp0f9ZtKQ5xKnQGBr/mo=
+github.com/d0ugal/promexporter v1.4.0 h1:dGv/7EEpdFBX+9PoQhKAz8GBFcr3gD9o7dx+n4YAoqw=
+github.com/d0ugal/promexporter v1.4.0/go.mod h1:LFrknRg+kELcF9EIAnLayJ5Yp0f9ZtKQ5xKnQGBr/mo=
 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=