feat: bump Go versions (#271)

Signed-off-by: Norbert Biczo <pyrooka@users.noreply.github.com>

.travis.yml

@@ -3,9 +3,9 @@ language: go
 dist: jammy
 
 go:
-- 1.18.x
 - 1.19.x
 - 1.20.x
+- 1.21.x
 
 notifications:
   email: true
@@ -37,5 +37,5 @@ deploy:
     script: npm run semantic-release
     skip_cleanup: true
     on:
-      go: '1.18.x'
+      go: '1.19.x'
       branch: main

README.md

@@ -83,7 +83,7 @@ Service Name | Package name
 * An [IBM Cloud][ibm-cloud-onboarding] account.
 * An IAM API key to allow the SDK to access your account. Create one
 [here](https://cloud.ibm.com/iam/apikeys).
-* Go version 1.18 or above.
+* Go version 1.19 or above.
 
 ## Installation
 The current version of this SDK: 0.45.0

go.mod

@@ -1,6 +1,6 @@
 module github.com/IBM/platform-services-go-sdk
 
-go 1.18
+go 1.19
 
 require (
 	github.com/IBM/go-sdk-core/v5 v5.13.2