Merge branch 'fix/recache-endpoint-header-check' into 'master'

Added support to run cache init endpoint with custom header `X-Cache-Init`.

See merge request go3-nrg/os-entitlements-cache-sync!1
10 jobs for initial_code_base in 4 minutes and 56 seconds (queued for 1 second)
latest Auto DevOps
Name Stage Failure
failed
build Build
-----> Installing go1.12.17
-----> Fetching go1.12.17.linux-amd64.tar.gz... done
-----> Fetching errors-0.8.0.tar.gz... done
-----> Fetching gb-0.4.4.tar.gz... done
-----> Installing GB v0.4.4... done
-----> Running: gb build -tags heroku
FATAL: command "build" failed: failed to resolve import path "entitlements-cache-sync": import "cloud.google.com/go/logging": not found: stat /tmp/build/src/cloud.google.com/go/logging: no such file or directory
The command '/bin/sh -c /bin/herokuish buildpack build' returned a non-zero code: 1
ERROR: Job failed: exit code 1
failed
test Test
-----> New Go Version, clearing old cache
-----> Installing go1.12.17
-----> Fetching go1.12.17.linux-amd64.tar.gz... done
-----> Fetching errors-0.8.0.tar.gz... done
-----> Fetching gb-0.4.4.tar.gz... done
-----> Installing GB v0.4.4... done
-----> Running: gb build -tags heroku
FATAL: command "build" failed: failed to resolve import path "entitlements-cache-sync": import "cloud.google.com/go/logging": not found: stat /tmp/build/src/cloud.google.com/go/logging: no such file or directory
ERROR: Job failed: exit code 1