Upgrade to Go 1.23

Author: paul-fastly

.github/workflows/build.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go: [ '1.18' ]
+        go: [ '1.23' ]
     name: Build ${{ matrix.go }}
     steps:
     - uses: aws-actions/configure-aws-credentials@v1-node16

go.mod

@@ -1,6 +1,6 @@
 module github.com/signalsciences/sigsci-module-golang
 
-go 1.21
+go 1.23
 
 require (
 	github.com/signalsciences/tlstext v1.2.0