[CI] Update GHPRB service user

Shared user sometimes been abused by other teams causing GitHub token
exhaustion
This causes delays in GHPRB plug in response

Move to media team dedicated service user

Issue: HPCINFRA-3443

Signed-off-by: Michael Braverman <[email protected]>

Author: MrBr-github

.ci/proj_jjb.yaml

@@ -88,7 +88,8 @@
             failure-status: "[FAIL]"
             error-status:   "[FAIL]"
             status-add-test-results: true
-            auth-id: 'swx-jenkins5_gh_token'
+            # svc-nbu-swx-media from GitHub Pull Request Builder
+            auth-id: 'svc-nbu-swx-media_GHPRB_ID'
             org-list: ["Mellanox"]
             white-list: ["swx-jenkins","swx-jenkins2","swx-jenkins3","mellanox-github"]
             allow-whitelist-orgs-as-admins: true

.ci/windows/windows_proj_jjb.yaml

@@ -33,8 +33,8 @@
             failure-status: "[FAIL]"
             error-status:   "[FAIL]"
             status-add-test-results: true
-            # swx-jenkins5 from GitHub Pull Request Builder
-            auth-id: 'swx-jenkins5_gh_token'
+            # svc-nbu-swx-media from GitHub Pull Request Builder
+            auth-id: 'svc-nbu-swx-media_GHPRB_ID'
             org-list: ["Mellanox", "mellanox-hpc", "Mellanox-lab"]
             allow-whitelist-orgs-as-admins: true
             cancel-builds-on-update: true