No bug: [try-staging] Update balrog rules to match staging balrog; r=nthomas

The staging balrog server got reset to match production, so update the rules to match.

Differential Revision: https://phabricator.services.mozilla.com/D15764

--HG--
extra : moz-landing-system : lando

taskcluster/ci/release-balrog-scheduling/kind.yml

@@ -39,7 +39,7 @@ jobs:
                   by-release-type:
                      beta: [32]
                      release: [145]
-                     esr60: [724]
+                     esr60: [806]
                      default: []
       treeherder:
          platform: firefox-release/opt

taskcluster/ci/release-balrog-submit-toplevel/kind.yml

@@ -53,7 +53,7 @@ jobs:
                   by-release-type:
                      beta: [32]
                      release(-rc)?: [145]
-                     esr60: [724]
+                     esr60: [806]
                      default: []
          rules-to-update:
             by-release-type: