Upgrading Manjaro ARM 21.03 seems impossible on Pinephone

I’m not sure you are on the unstable branch or it should be installing icu 76.1-1.

[ray@jellyfin ~]$ sudo pacman -S libphonenumber raptor
warning: raptor-2.0.16-6.1 is up to date -- reinstalling
resolving dependencies...
looking for conflicting packages...

Packages (2) libphonenumber-1:9.0.1-1  raptor-2.0.16-6.1

Total Download Size:    1.63 MiB
Total Installed Size:  18.81 MiB
Net Upgrade Size:      16.73 MiB

:: Proceed with installation? [Y/n] 
:: Retrieving packages...
 libphonenumber-1...  1389.0 KiB   734 KiB/s 00:02 [######################] 100%
 raptor-2.0.16-6....   278.8 KiB   373 KiB/s 00:01 [######################] 100%
 Total (2/2)          1667.8 KiB   561 KiB/s 00:03 [######################] 100%
(2/2) checking keys in keyring                     [######################] 100%
(2/2) checking package integrity                   [######################] 100%
(2/2) loading package files                        [######################] 100%
(2/2) checking for file conflicts                  [######################] 100%
(2/2) checking available disk space                [######################] 100%
:: Processing package changes...
(1/2) installing libphonenumber                    [######################] 100%
(2/2) reinstalling raptor                          [######################] 100%
:: Running post-transaction hooks...
(1/2) Arming ConditionNeedsUpdate...
(2/2) Checking which packages need to be rebuilt
Packages (1) manjaro-arm-keyring-20240211-2

Total Download Size:   0.02 MiB
Total Installed Size:  0.02 MiB
Net Upgrade Size:      0.00 MiB


:: Proceed with installation? [Y/n] 
:: Retrieving packages...
 manjaro-arm-keyring-2024...    19.6 KiB  31.9 KiB/s 00:01 [################################] 100%
(1/1) checking keys in keyring                             [################################] 100%
(1/1) checking package integrity                           [################################] 100%
(1/1) loading package files                                [################################] 100%
(1/1) checking for file conflicts                          [################################] 100%
(1/1) checking available disk space                        [################################] 100%
:: Processing package changes...
(1/1) reinstalling manjaro-arm-keyring                     [################################] 100%
==> Appending keys from manjaro-arm.gpg...
gpg: error reading key: No public key
==> Disabling revoked keys in keyring...
  -> Disabled 1 key.
==> Updating trust database...
gpg: next trustdb check due at 2026-08-21
:: Running post-transaction hooks...
(1/2) Arming ConditionNeedsUpdate...
(2/2) Checking which packages need to be rebuilt