upgrade to go1.19

[cpanato]

Summary

• upgrade to go1.19

[codecov-commenter]

Codecov Report

Merging #767 (e77d2b7) into main (a0b8644) will not change coverage.
The diff coverage is 50.00%.

@@           Coverage Diff           @@
##             main     #767   +/-   ##
=======================================
  Coverage   54.54%   54.54%           
=======================================
  Files          36       36           
  Lines        2275     2275           
=======================================
  Hits         1241     1241           
  Misses        942      942           
  Partials       92       92           

Impacted Files	Coverage Δ
pkg/config/config.go	69.25% <50.00%> (ø)

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[cpanato]

getting this error

2022-08-31T09:31:04.580156925Z stderr F {"severity":"fatal","ts":1661938264.5799956,"caller":"app/serve.go:221","message":"x509: certificate contains duplicate extensions","stacktrace":"github.com/sigstore/fulcio/cmd/app.runServeCmd\n\tgithub.com/sigstore/fulcio/cmd/app/serve.go:221\ngithub.com/spf13/cobra.(*Command).execute\n\tgithub.com/spf13/cobra@v1.5.0/command.go:876\ngithub.com/spf13/cobra.(*Command).ExecuteC\n\tgithub.com/spf13/cobra@v1.5.0/command.go:990\ngithub.com/spf13/cobra.(*Command).Execute\n\tgithub.com/spf13/cobra@v1.5.0/command.go:918\ngithub.com/spf13/cobra.(*Command).ExecuteContext\n\tgithub.com/spf13/cobra@v1.5.0/command.go:911\ngithub.com/sigstore/fulcio/cmd/app.Execute\n\tgithub.com/sigstore/fulcio/cmd/app/root.go:37\nmain.main\n\tgithub.com/sigstore/fulcio/main.go:25\nruntime.main\n\truntime/proc.go:250"}

[haydentherapper]

To confirm, the go.mod version had to be updated after this has been submitted?

[cpanato]

To confirm, the go.mod version had to be updated after this has been submitted?

yes

[cpanato]

all green now PTAL @dlorenc @haydentherapper @bobcallaway