jobs/master-builds: use binaries ssh credentials

Allow overriding the ssh agent credentials per repository, and use
binaries_ftp.osmocom.org where needed. Use docs_ftp.osmocom.org instead
of 97634b9d-a867-4f6d-825d-1da99813e93d so it's clear what the key is
for. I generated a new one with the new ID.

Fixes: OS#5798
Change-Id: I821968e09aaac3f6f6178de33fc909f81cb4abcb

jobs/master-builds.yml

@@ -49,6 +49,8 @@
     trigger:
     email: jenkins-notifications@lists.osmocom.org laforge@gnumonks.org
     git_base_url: https://gerrit.osmocom.org
+    ssh:
+      - docs_ftp.osmocom.org
 
     # in alphabetical order
     repos:
@@ -260,6 +262,9 @@
           docker_img: 'registry.osmocom.org/$USER/fpga-build'
           cmd: 'docker pull {docker_img} && {docker_run} {docker_img} {timeout_cmd} /build/contrib/jenkins.sh --publish'
           email: jenkins-notifications@lists.osmocom.org laforge@gnumonks.org kredon@sysmocom.de 246tnt@gmail.com
+          ssh:
+            - binaries_ftp.osmocom.org
+            - docs_ftp.osmocom.org
 
       - osmo-fl2k:
           git_base_url: https://gitea.osmocom.org/sdr
@@ -390,6 +395,9 @@
       - osmo-asf4-dfu:
           cmd: '{docker_run} {docker_img} {timeout_cmd} /build/contrib/jenkins.sh --publish'
           email: jenkins-notifications@lists.osmocom.org laforge@gnumonks.org ewild@sysmocom.de
+          ssh:
+            - binaries_ftp.osmocom.org
+            - docs_ftp.osmocom.org
       - osmo-ccid-firmware:
           cmd: '{docker_run} {docker_img} {timeout_cmd} /build/contrib/jenkins.sh --publish'
           email: jenkins-notifications@lists.osmocom.org laforge@gnumonks.org ewild@sysmocom.de
@@ -401,6 +409,9 @@
           docker_img: '$USER/debian-bullseye-jenkins'
           cmd: '{docker_run} {docker_img} {timeout_cmd} /build/contrib/jenkins.sh --publish'
           email: jenkins-notifications@lists.osmocom.org laforge@gnumonks.org kredon@sysmocom.de
+          ssh:
+            - binaries_ftp.osmocom.org
+            - docs_ftp.osmocom.org
 
       - osmo-e1d
       - osmo-cbc
@@ -533,7 +544,6 @@
            send-to-individuals: true
     wrappers:
        - ssh-agent-credentials:
-           users:
-           - 97634b9d-a867-4f6d-825d-1da99813e93d
+           users: '{obj:ssh}'
 
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