feat: updated version of Go

Author: mrz1836

.github/mergify.yml

@@ -8,8 +8,8 @@ pull_request_rules:
     conditions:
       - -draft
       - author~=^dependabot(|-preview)\[bot\]$
-      - check-success='test (1.17.x, ubuntu-latest)'
       - check-success='test (1.18.x, ubuntu-latest)'
+      - check-success='test (1.19.x, ubuntu-latest)'
       - check-success='Analyze (go)'
       - title~=^Bump [^\s]+ from ([\d]+)\..+ to \1\.
     actions:
@@ -21,8 +21,8 @@ pull_request_rules:
   - name: Alert on major version detection
     conditions:
       - author~=^dependabot(|-preview)\[bot\]$
-      - check-success='test (1.17.x, ubuntu-latest)'
       - check-success='test (1.18.x, ubuntu-latest)'
+      - check-success='test (1.19.x, ubuntu-latest)'
       - check-success='Analyze (go)'
       - -title~=^Bump [^\s]+ from ([\d]+)\..+ to \1\.
     actions:
@@ -38,8 +38,8 @@ pull_request_rules:
       - "#approved-reviews-by>=1"
       - "#review-requested=0"
       - "#changes-requested-reviews-by=0"
-      - check-success='test (1.17.x, ubuntu-latest)'
       - check-success='test (1.18.x, ubuntu-latest)'
+      - check-success='test (1.19.x, ubuntu-latest)'
       - check-success='Analyze (go)'
       - -title~=(?i)wip
       - label!=work-in-progress

.github/workflows/release.yml

@@ -23,7 +23,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v4
         with:
-          go-version: 1.17
+          go-version: 1.19
       - name: Run GoReleaser
         uses: goreleaser/[email protected]
         with:

.github/workflows/run-tests.yml

@@ -15,7 +15,7 @@ jobs:
   test:
     strategy:
       matrix:
-        go-version: [ 1.17.x, 1.18.x ]
+        go-version: [ 1.18.x, 1.19.x ]
         os: [ ubuntu-latest ]
     runs-on: ${{ matrix.os }}
     steps:

README.md

@@ -130,7 +130,7 @@ vet                  Run the Go vet application
 
 ## Examples & Tests
 All unit tests and [examples](examples) run via [GitHub Actions](https://github.com/mrz1836/go-mail/actions) and
-uses [Go version 1.17.x](https://golang.org/doc/go1.17). View the [configuration file](.github/workflows/run-tests.yml).
+uses [Go version 1.18.x](https://golang.org/doc/go1.18). View the [configuration file](.github/workflows/run-tests.yml).
 
 Run all tests (including integration tests)
 ```shell script