v8.0.19

[rel-v8r0]

*WorkloadManagementSystem

FIX: (#6979) JobStatus: add staging to checking transition, needed by StorageManagementSystem (Stager)
NEW: (#6968) tests for RemoteRunner
CHANGE: (#6968) RemoteRunner can deal with MP applications, clean job outputs and process more applications
FIX: (#6968) Modify the DIRACVersion in the PushJobAgent
FIX: (#6938) Watchdog fix: always report correct types

*Core

FIX: (#6975) retry upon DNS lookup error
FIX: (#6934) protection for opensearch_dsl being merged in opensearchpy

*Resources

NEW: (#6968) cleanJob() in AREX
CHANGE: (#6968) executables from inputs are passed as executables in the XRSL in ARC and AREX
NEW: (#6882) unit tests for IdProviders

*docs

CHANGE: (#6968) more details in the "supercomputers" section

*tests

CHANGE: (#6946) Integration tests: upped Opensearch version to 2.1.0
NEW: (#6882) integration tests for IdProviders

PR for fixing dead link in doc (monitoring part)
FIX: (#6942) change urls for WMS and Logs dashboards
PR for adding Dirac side code related to https://github.com/DIRACGrid/WebAppDIRAC/pull/729/commits
CHANGE: (#6941) Add getTokensByUserID method and make it compliant with ProxyManager code

*Integration tests

FIX: (#6940) Make error nicer when the IAM docker instance is not working properly

*Tornado

FIX: (#6932) do not use activityMonitor in TornadoREST