Change k6 dependency to v0.45.1

A transitive dependency was removed. v0.45.0 was patched to address the issue. See grafana/k6#3252.

go.mod

@@ -1,35 +1,34 @@
 module github.com/szkiba/xk6-dotenv
 
-go 1.18
+go 1.19
 
 require (
 	github.com/joho/godotenv v1.5.1
 	github.com/stretchr/testify v1.8.2
-	go.k6.io/k6 v0.43.1
+	go.k6.io/k6 v0.45.1
 )
 
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/dlclark/regexp2 v1.7.0 // indirect
-	github.com/dop251/goja v0.0.0-20230128084908-78b980256d04 // indirect
-	github.com/fatih/color v1.13.0 // indirect
+	github.com/dlclark/regexp2 v1.9.0 // indirect
+	github.com/dop251/goja v0.0.0-20230531210528-d7324b2d74f7 // indirect
+	github.com/fatih/color v1.15.0 // indirect
 	github.com/go-sourcemap/sourcemap v2.1.4-0.20211119122758-180fcef48034+incompatible // indirect
+	github.com/google/pprof v0.0.0-20230207041349-798e818bf904 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
-	github.com/mattn/go-isatty v0.0.16 // indirect
-	github.com/mstoykov/atlas v0.0.0-20220808085829-90340e9998bd // indirect
+	github.com/mattn/go-isatty v0.0.18 // indirect
+	github.com/mstoykov/atlas v0.0.0-20220811071828-388f114305dd // indirect
 	github.com/onsi/ginkgo v1.16.5 // indirect
 	github.com/onsi/gomega v1.27.2 // indirect
-	github.com/oxtoacart/bpool v0.0.0-20190530202638-03653db5a59c // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/serenize/snaker v0.0.0-20201027110005-a7ad2135616e // indirect
 	github.com/sirupsen/logrus v1.9.0 // indirect
 	github.com/spf13/afero v1.8.2 // indirect
-	golang.org/x/sys v0.5.0 // indirect
-	golang.org/x/text v0.7.0 // indirect
-	golang.org/x/time v0.0.0-20220922220347-f3bd1da661af // indirect
-	google.golang.org/genproto v0.0.0-20220608133413-ed9918b62aac // indirect
+	golang.org/x/sys v0.8.0 // indirect
+	golang.org/x/text v0.9.0 // indirect
+	golang.org/x/time v0.3.0 // indirect
 	gopkg.in/guregu/null.v3 v3.5.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )