[circleci] build broken due to circleci/node:8 changes

[stefan-guggisberg]

Description
as of dec 28 circleci build jobs (i.e. npm test) fail with:

/home/circleci/repo/node_modules/nodegit/dist/nodegit.js:16
    throw ex;
    ^

Error: libcrypto.so.1.0.0: cannot open shared object file: No such file or directory

node version hasn't changed (v8.13).

To Reproduce

• Got to CircleCi dashboard
• open a failing helix-cli build job
• open Spin up Environment step and check sha256 of circleci/node:8 image
• do the same with last successful build job

Expected behavior
build job shouldn't fail if it succeeded previously and there were no changes to the code or circleci config.

[kptdobe]

I applied the same tmp fix to the smoke test instance: adobe/helix-continuous@b1c4450

[stefan-guggisberg]

problem analysis:

circleci/node:8 used to resolve to circleci/node:8.12-jesssie (jessie -> debian 8)

since a couple of hours ago circleci/node:8 resolves to circleci/node:8.13-stretch (stretch -> debian 9)

on debian 9 the following error occurs when running the tests:

Error: libcrypto.so.1.0.0: cannot open shared object file: No such file or directory

solution: use latest node 8 version on debian 8, i.e. circleci/node:8-jessie

[stefan-guggisberg]

fixed in 25ec7cc

[kptdobe]

I patched the CI too: adobe/helix-continuous@227ddd8