update bullseye upgrade status, 6 to go

howto/upgrades/bullseye.md

@@ -827,19 +827,16 @@ Or, by codename, including the codename in the output:
 
     count(node_os_info{version_codename!="bullseye"}) by (alias,version_codename)
 
-Update: situation as of 2023-04-04, after moly's retirement. 9
+Update: situation as of 2023-06-05, after moly's retirement. 6
 machines to upgrade, including:
 
- * Sunet cluster, to rebuild (3, tpo/tpa/team#40684):
-   * cdn-backend-sunet-01
-   * corsicum
-   * nutans
+ * ~~Sunet cluster, to rebuild (3, tpo/tpa/team#40684)~~
  * High complexity upgrades (4):
    * alberti (tpo/tpa/team#40693)
    * eugeni (tpo/tpa/team#40694)
    * hetzner-hel1-01 (tpo/tpa/team#40695)
    * pauli (tpo/tpa/team#40696)
- * to retire (TPA-RFC-36, tpo/tpa/team#40472)
+ * to retire ([TPA-RFC-36](https://gitlab.torproject.org/tpo/tpa/team/-/wikis/policy/tpa-rfc-36-gitolite-gitweb-retirement), tpo/tpa/team#40472)
    * cupani
    * vineale
 

howto/upgrades/bullseye/data.csv

@@ -37,3 +37,6 @@ Date,release,count
 2023-05-08,bullseye,77
 2023-05-08,bookworm,1
 2023-05-08,buster,7
+2023-06-05,bullseye,78
+2023-06-05,buster,6
+2023-06-05,bookworm,2