chore(deps): bump github.com/ViBiOh/mailer from 1.16.7 to 1.16.8

Bumps [github.com/ViBiOh/mailer](https://github.com/ViBiOh/mailer) from 1.16.7 to 1.16.8.
- [Release notes](https://github.com/ViBiOh/mailer/releases)
- [Commits](ViBiOh/mailer@v1.16.7...v1.16.8)

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

go.mod

@@ -5,8 +5,8 @@ go 1.16
 require (
 	github.com/DATA-DOG/go-sqlmock v1.5.0
 	github.com/ViBiOh/auth/v2 v2.6.14
-	github.com/ViBiOh/httputils/v4 v4.7.1
-	github.com/ViBiOh/mailer v1.16.7
+	github.com/ViBiOh/httputils/v4 v4.8.0
+	github.com/ViBiOh/mailer v1.16.8
 	github.com/lib/pq v1.10.1
 	github.com/prometheus/client_golang v1.10.0
 	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b

go.sum

@@ -8,10 +8,11 @@ github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWX
 github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
 github.com/ViBiOh/auth/v2 v2.6.14 h1:0LK+/3RImpc2uWV23830oj5G/vjXnO9PU3dI1OFVxMw=
 github.com/ViBiOh/auth/v2 v2.6.14/go.mod h1:X9PL4AW0oH/mgUv2bL1pohlqPL/C4DfSQ9Y9+FU/Z5s=
-github.com/ViBiOh/httputils/v4 v4.7.1 h1:pgT69uNNMLRxc6TTPFlQVLMBXW0NDPEf6nfFJNwRcPE=
 github.com/ViBiOh/httputils/v4 v4.7.1/go.mod h1:1hyt/nMC1kLiB9sm+qfHaQY9TIxS7gcUQZTV0DZ/nwc=
-github.com/ViBiOh/mailer v1.16.7 h1:Y8wwSenvEOGS2gLrIK31aYGUhNB0f0/Z4iqv1R+rrhk=
-github.com/ViBiOh/mailer v1.16.7/go.mod h1:JOy/hE1UUSZB3KpqJ5mbxT9tDWEhGW8XPvO5gD2EL4Q=
+github.com/ViBiOh/httputils/v4 v4.8.0 h1:fs2fjkBnmElYyPbM5vqDz00SyJsomUmKQIwTxSLw+kM=
+github.com/ViBiOh/httputils/v4 v4.8.0/go.mod h1:1hyt/nMC1kLiB9sm+qfHaQY9TIxS7gcUQZTV0DZ/nwc=
+github.com/ViBiOh/mailer v1.16.8 h1:rh8aCCwO5mx6ktLeEwsrsPwF2eJeq8FATCqQst4FNIk=
+github.com/ViBiOh/mailer v1.16.8/go.mod h1:cSP0mW1oTyvYIHH+FS1C7ip419BGEnkN7xOmoQ7HHvs=
 github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=
 github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5/go.mod h1:SkGFH1ia65gfNATL8TAiHDNxPzPdmEL5uirI2Uyuz6c=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=