fix(deps): update module github.com/slack-go/slack to v0.26.0

Author: renovate[bot]

go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/expr-lang/expr v1.17.8
 	github.com/hashicorp/vault/api v1.23.0
 	github.com/panjf2000/gnet/v2 v2.9.8
-	github.com/slack-go/slack v0.25.0
+	github.com/slack-go/slack v0.26.0
 	github.com/spf13/cobra v1.10.2
 	github.com/spf13/viper v1.21.0
 	github.com/stretchr/testify v1.11.1

go.sum

@@ -114,6 +114,8 @@ github.com/slack-go/slack v0.24.0 h1:oMz5WcCBVTkxpBxeA8QVxxK70R+XV/a0qNka6TRNGHQ
 github.com/slack-go/slack v0.24.0/go.mod h1:H0yR/YBuRJ39RkE+JpV/d/oEsbanzTRowR82bCN0cEs=
 github.com/slack-go/slack v0.25.0 h1:VN8qWsC+GJW9XlaLbOHePlgJHicrVVMGDoLHpEeC34E=
 github.com/slack-go/slack v0.25.0/go.mod h1:H0yR/YBuRJ39RkE+JpV/d/oEsbanzTRowR82bCN0cEs=
+github.com/slack-go/slack v0.26.0 h1:hx5Iy1t89tSw2zLEHu5YFFTDDFGmvhYCUh73ptHQ2Ls=
+github.com/slack-go/slack v0.26.0/go.mod h1:UEe+jmo9WLlwHB04qsOrTDvqM7Aa4rQL3O5wF3n0hx4=
 github.com/spf13/afero v1.15.0 h1:b/YBCLWAJdFWJTN9cLhiXXcD7mzKn9Dm86dNnfyQw1I=
 github.com/spf13/afero v1.15.0/go.mod h1:NC2ByUVxtQs4b3sIUphxK0NioZnmxgyCrfzeuq8lxMg=
 github.com/spf13/cast v1.10.0 h1:h2x0u2shc1QuLHfxi+cTJvs30+ZAHOGRic8uyGTDWxY=