Container upgrade: Alpine 3.12, OpenSSL 1.1.1g, remove OpenSSL 1.0.2 and FIPS

[rvagg]

Alpine 3.12 doesn't come with a Python 2 option and Node 10 and 12's configure don't seem to like Python 3 so I've added an exclusion to VersionSelectorScript. I've also had to symlink python3 as python in those packages because we still force PYTHON=python in the commit-linux job.

[bnoordhuis]

(insofar I'm able to judge that)

[richardlau]

We can also remove openssl 1.0.2 and fips from node-test-commit-linux-containered (we'll need to keep the VersionSelector entries until after we update the job). I can do that, if there are no objections.

[rvagg]

yep, was going to leave that for a separate job since the order of operations is important, more than happy for you to do it. the old FIPS too while you're there.

[richardlau]

We can also remove openssl 1.0.2 and fips from node-test-commit-linux-containered (we'll need to keep the VersionSelector entries until after we update the job). I can do that, if there are no objections.

I've updated the job.
Test builds:
10.x: https://ci.nodejs.org/job/node-test-commit-linux-containered/20965/
master: https://ci.nodejs.org/job/node-test-commit-linux-containered/20966/

Labels still exist on each of the containered nodes in Jenkins,
i.e.

• https://ci.nodejs.org/label/ubuntu1804_sharedlibs_fips20_x64/
• https://ci.nodejs.org/label/ubuntu1804_sharedlibs_openssl102_x64/

and the VersionSelectorScript.groovy hasn't been updated. They're relatively harmless (as the job is no longer using them), so no rush to edit.