[PR #2004/141ae4fb backport][stable-4.8] fix(signing):Set signing keys to never expire

[patchback]

This is a backport of PR #2004 as merged into master (141ae4f).

Edited keys to never expire

No-Issue

For reference

$ gpg --edit-key EBED170E8C9480E22A1D059B15250E9EC0A62577
gpg> expire
# select the option
gpg> save

# do it again for sub key
$ gpg --edit-key EBED170E8C9480E22A1D059B15250E9EC0A62577
gpg> key 1
gpg> expire
# select the option
gpg> save

Reexport

$ gpg --armor --export EBED170E8C9480E22A1D059B15250E9EC0A62577 > dev/common/ansible-sign-pub.txt

$ gpg --output dev/common/ansible-sign-pub.gpg --armor --export EBED170E8C9480E22A1D059B15250E9EC0A62577

$ gpg --output dev/common/ansible-sign.key --armor --export-secret-keys EBED170E8C9480E22A1D059B15250E9EC0A62577

[app-sre-bot]

Can one of the admins verify this patch?