Fixes containers and parametrizes options in google.config

[Vlad-Dembrovskyi]

This PR

• [x] Fixes that new docker images were always overwritten by old ones when using google.config (solves #282)
• [x] Parametrizes set of google options (closes #214 ) The latter is proven by the fact that I could run this pipeline in a different workspace than it has always been run in by changing the --network and --subnetwork parameters.

To test

git clone https://github.com/TheJacksonLaboratory/splicing-pipelines-nf
cd splicing-pipelines-nf
nextflow run . --reads examples/testdata/sra/sra.csv --singleEnd --download_from SRA --gtf https://lifebit-featured-datasets.s3-eu-west-1.amazonaws.com/projects/jax/splicing-pipelines-nf/genes.gtf --star_index https://lifebit-featured-datasets.s3-eu-west-1.amazonaws.com/projects/jax/splicing-pipelines-nf/star_2.7.9a_yeast_chr_I.tar.gz --test true --readlength 500 --overhang 100 --max_cpus 2 --max_memory 6.GB --max_time 48.h

Successful CloudOS run

https://cloudos.lifebit.ai/app/jobs/6168145e1b866a01d698f3ca https://cloudos.lifebit.ai/public/jobs/6168145e1b866a01d698f3ca (public)