chore(deps): bump github.com/mrz1836/postmark from 1.8.2 to 1.8.3 (#357)

Bumps [github.com/mrz1836/postmark](https://github.com/mrz1836/postmark) from 1.8.2 to 1.8.3.
- [Release notes](https://github.com/mrz1836/postmark/releases)
- [Commits](mrz1836/postmark@v1.8.2...v1.8.3)

---
updated-dependencies:
- dependency-name: github.com/mrz1836/postmark
  dependency-version: 1.8.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

go.mod

@@ -12,7 +12,7 @@ require (
 	github.com/google/uuid v1.6.0
 	github.com/joho/godotenv v1.5.1
 	github.com/mediocregopher/radix/v4 v4.1.4
-	github.com/mrz1836/postmark v1.8.2
+	github.com/mrz1836/postmark v1.8.3
 	github.com/pilinux/argon2 v0.23.0
 	github.com/pilinux/crypt v0.0.18
 	github.com/pilinux/libgo v0.0.5

go.sum

@@ -93,8 +93,8 @@ github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9G
 github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
 github.com/montanaflynn/stats v0.7.1 h1:etflOAAHORrCC44V+aR6Ftzort912ZU+YLiSTuV8eaE=
 github.com/montanaflynn/stats v0.7.1/go.mod h1:etXPPgVO6n31NxCd9KQUMvCM+ve0ruNzt6R8Bnaayow=
-github.com/mrz1836/postmark v1.8.2 h1:tlBx8Dyqxpc0HrgrPhHDdSc66cxrkCRBnlPZlqpwAuA=
-github.com/mrz1836/postmark v1.8.2/go.mod h1:0/7m4WMaKl72nWb55H7AIPtuCuvkdEIAjV1jAGCBFIQ=
+github.com/mrz1836/postmark v1.8.3 h1:hs+XqLVTVJymehlaFHxZoqkus+MelDbQnrXrmI+/bhI=
+github.com/mrz1836/postmark v1.8.3/go.mod h1:0/7m4WMaKl72nWb55H7AIPtuCuvkdEIAjV1jAGCBFIQ=
 github.com/pelletier/go-toml/v2 v2.2.4 h1:mye9XuhQ6gvn5h28+VilKrrPoQVanw5PMw/TB0t5Ec4=
 github.com/pelletier/go-toml/v2 v2.2.4/go.mod h1:2gIqNv+qfxSVS7cM2xJQKtLSTLUE9V8t9Stt+h56mCY=
 github.com/pilinux/argon2 v0.23.0 h1:9sB7rMcHMU1BWiRrGU35JlFdqMViO53BU4XmQqOpO7k=