fix(deps): update module github.com/mailgun/mailgun-go/v4 to v4.14.0 (#856)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

go.mod

@@ -19,7 +19,7 @@ require (
 	github.com/dghubble/oauth1 v0.7.3
 	github.com/go-telegram-bot-api/telegram-bot-api v4.6.4+incompatible
 	github.com/line/line-bot-sdk-go v7.8.0+incompatible
-	github.com/mailgun/mailgun-go/v4 v4.12.0
+	github.com/mailgun/mailgun-go/v4 v4.14.0
 	github.com/plivo/plivo-go/v7 v7.51.0
 	github.com/sendgrid/sendgrid-go v3.15.0+incompatible
 	github.com/silenceper/wechat/v2 v2.1.6

go.sum

@@ -237,8 +237,8 @@ github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
 github.com/leodido/go-urn v1.4.0/go.mod h1:bvxc+MVxLKB4z00jd1z+Dvzr47oO32F/QSNjSBOlFxI=
 github.com/line/line-bot-sdk-go v7.8.0+incompatible h1:Uf9/OxV0zCVfqyvwZPH8CrdiHXXmMRa/L91G3btQblQ=
 github.com/line/line-bot-sdk-go v7.8.0+incompatible/go.mod h1:0RjLjJEAU/3GIcHkC3av6O4jInAbt25nnZVmOFUgDBg=
-github.com/mailgun/mailgun-go/v4 v4.12.0 h1:TtuQCgqSp4cB6swPxP5VF/u4JeeBIAjTdpuQ+4Usd/w=
-github.com/mailgun/mailgun-go/v4 v4.12.0/go.mod h1:L9s941Lgk7iB3TgywTPz074pK2Ekkg4kgbnAaAyJ2z8=
+github.com/mailgun/mailgun-go/v4 v4.14.0 h1:N9GMNs0XUq5nn3v2TlZHCknF9khSh88MkA1hdRm1o7I=
+github.com/mailgun/mailgun-go/v4 v4.14.0/go.mod h1:L9s941Lgk7iB3TgywTPz074pK2Ekkg4kgbnAaAyJ2z8=
 github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
 github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
 github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=