[misc] make build scripts happy again

- move pdf.js tests into test/unit/js
- add env override to build script config file
- update build scripts

services/clsi/buildscript.txt

@@ -2,7 +2,7 @@ clsi
 --data-dirs=cache,compiles,db,output
 --dependencies=
 --docker-repos=gcr.io/overleaf-ops
---env-add=
+--env-add=ENABLE_PDF_CACHING="true"
 --env-pass-through=TEXLIVE_IMAGE
 --node-version=12.22.3
 --public-repo=True

services/clsi/package.json

@@ -10,7 +10,7 @@
     "start": "node $NODE_APP_OPTIONS app.js",
     "test:acceptance:_run": "mocha --recursive --reporter spec --timeout 15000 --exit $@ test/acceptance/js",
     "test:acceptance": "npm run test:acceptance:_run -- --grep=$MOCHA_GREP",
-    "test:unit:_run": "mocha --recursive --reporter spec $@ test/unit/js test/unit/lib",
+    "test:unit:_run": "mocha --recursive --reporter spec $@ test/unit/js",
     "test:unit": "npm run test:unit:_run -- --grep=$MOCHA_GREP",
     "nodemon": "nodemon --config nodemon.json",
     "lint": "eslint --max-warnings 0 --format unix .",

services/clsi/test/unit/js/pdfjsTests.js

@@ -3,7 +3,7 @@ const Path = require('path')
 const { expect } = require('chai')
 const { parseXrefTable } = require('../../../app/lib/pdfjs/parseXrefTable')
 const PATH_EXAMPLES = 'test/acceptance/fixtures/examples/'
-const PATH_SNAPSHOTS = 'test/unit/lib/snapshots/'
+const PATH_SNAPSHOTS = 'test/unit/js/snapshots/pdfjs/'
 const EXAMPLES = fs.readdirSync(PATH_EXAMPLES)
 
 function snapshotPath(example) {