CI: add G4 install to $PATH

(cherry picked from commit 86052dfd)
40 jobs for v1.4.3 in 57 minutes and 59 seconds (queued for 2 seconds)
latest
Status Name Job ID Coverage
  Compilation
passed cmp:cc7-docker #6734368
docker

00:08:34

passed cmp:cc7-gcc #6752232
docker

00:02:01

passed cmp:cc7-llvm #6734370
docker

00:01:41

passed cmp:lxplus-gcc #6734367
docker

00:01:55

passed cmp:mac1014-clang #6734371
mac

00:02:06

passed cmp:slc6-gcc #6752233
docker

00:02:33

passed cmp:slc6-llvm #6734366
docker

00:01:53

passed cmp:cc7-gcc #6734369
docker

00:02:29

passed cmp:slc6-gcc #6734365
docker

00:02:14

 
  Testing
passed core:cc7-docker #6734379
docker

00:02:23

passed core:cc7-gcc #6734381
docker

00:01:02

passed core:cc7-llvm #6734383
docker

00:00:31

passed core:lxplus-gcc #6734376
docker

00:00:29

passed core:mac1014-clang #6734385
mac

00:00:15

passed core:slc6-gcc #6734374
docker

00:01:14

passed core:slc6-llvm #6734378
docker

00:00:27

passed examples #6734372
docker

00:00:38

passed mod:cc7-gcc #6734380
docker

00:01:13

passed mod:cc7-llvm #6734382
docker

00:01:14

passed mod:lxplus-gcc #6734375
docker

00:01:42

passed mod:mac1014-clang #6734384
mac

00:00:58

passed mod:slc6-gcc #6734373
docker

00:01:48

passed mod:slc6-llvm #6734377
docker

00:01:45

 
  Formatting
passed fmt:cc7-llvm-format #6734388
docker

00:00:17

passed fmt:cc7-llvm-lint #6734389
docker

00:21:05

passed fmt:slc6-llvm-format #6734386
docker

00:00:22

passed fmt:slc6-llvm-lint #6734387
docker

00:22:33

 
  Performance
passed perf:cc7-gcc #6734390
benchmark

00:11:31

 
  Documentation
passed cmp:doxygen #6734391
docker

00:00:56

passed cmp:usermanual #6734392
docker

00:03:20

 
  Packaging
passed pkg:cc7-gcc #6752292
docker

00:01:53

passed pkg:slc6-gcc #6752293
docker

00:01:52

passed pkg:cc7-gcc #6734394
docker

00:02:05

passed pkg:slc6-gcc #6734393
docker

00:02:17

 
  Deployment
passed deploy-cvmfs #6752695
cvmfs-deploy

00:00:20

passed deploy-docker-tag #6749460
docker-image-build

00:03:42

passed deploy-documentation #6734395
docker

00:01:02

passed deploy-eos #6734396
docker

00:00:13

passed deploy-cvmfs #6734397
cvmfs-deploy

00:00:18

failed deploy-docker-tag #6734398
docker-image-build

00:03:32