Increase staging_upload_template and production_release_template timeout from 35m to 60m

What does this MR do and why?

Backport of bce1a9fc to 19-1-stable.

Distro staging jobs that push packages to Pulp on dev.gitlab.org have been timing out at 35 minutes, causing over 20 pipeline failures. This also affects FIPS staging uploads, since .fips_staging_upload_template extends .staging_upload_template and inherits its timeout. Increase the timeout to 60 minutes to give uploads more headroom.

Related to gitlab-org/build/team-tasks#273 (closed)

MR acceptance checklist

• This MR is backporting a bug fix, documentation update, or spec fix, previously merged in the default branch.
• The original MR has been deployed to GitLab.com (not applicable for documentation or spec changes).
• This MR has a severity label assigned (if applicable).

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