Remove unneeded redirection (PDK progress indicator)

[bittner]

The redirection of output to stderr can now simply be removed, i.e. use code like this:

- stage: validate
  script: pdk validate

- stage: test
  script: pdk test unit

See puppetlabs/pdk#323 (comment) for reference.

[edestecd]

the new templates in pdk no longer use pdk in travis.

[bittner]

Alright. 🤔

If the CI configuration proposed by Puppet Lab looks like this (aka "hard to memorize") we should probably do something about it.

[bittner]

the new templates in pdk no longer use pdk in travis.

They probably never did in the past.

[edestecd]

Yea that's the one. We use the stock PDK templates from that repo.
We have discussed using PDK in our travis builds, but at this point I'm happy to just have a tool that can manage all those files I'm sick of syncing across all our modules ;)

[edestecd]

Its updated to use version 1.5.0 of the pdk templates. Did we need anything else here?

[bittner]

Well, it's @puppetlab's turn now.