Build dev docker image for master and rc using github actions (#7410)
Build dev docker image for master and rc using github actions (#7410)

* Github action to perform cached docker builds

* Action to use caching and secrets

* Adds missing context

* Adjust context

* Context point to root

* Hard code root dir

* test run

* test run 2

* test run 3

* test run 4

* test run 5

* test run 6

* Adds second dockerfile build

* test run 7

* test run 8

* test run 9

* test run 10

* test run 11

* test run 12

* test run 13

* Run on push to rc/master

* Changes image name to match primary repo
n1zea144/cbioportal,onursumer/cbioportal,sheridancbio/cbioportal,n1zea144/cbioportal,angelicaochoa/cbioportal,angelicaochoa/cbioportal,cBioPortal/cbioportal,angelicaochoa/cbioportal,mandawilson/cbioportal,angelicaochoa/cbioportal,onursumer/cbioportal,sheridancbio/cbioportal,sheridancbio/cbioportal,zhx828/cbioportal,sheridancbio/cbioportal,onursumer/cbioportal,cBioPortal/cbioportal,mandawilson/cbioportal,n1zea144/cbioportal,mandawilson/cbioportal,angelicaochoa/cbioportal,onursumer/cbioportal,zhx828/cbioportal,mandawilson/cbioportal,cBioPortal/cbioportal,onursumer/cbioportal,sheridancbio/cbioportal,n1zea144/cbioportal,cBioPortal/cbioportal,mandawilson/cbioportal,cBioPortal/cbioportal,n1zea144/cbioportal,sheridancbio/cbioportal,angelicaochoa/cbioportal,zhx828/cbioportal,mandawilson/cbioportal,mandawilson/cbioportal,zhx828/cbioportal,zhx828/cbioportal,cBioPortal/cbioportal,zhx828/cbioportal,onursumer/cbioportal,angelicaochoa/cbioportal,zhx828/cbioportal,n1zea144/cbioportal,n1zea144/cbioportal