Upgrade various build-packages

[waddlesplash]

This should be done before the next release.

1. libsolv (​https://review.haiku-os.org/c/haiku/+/6270)

This will require careful testing, as libsolv is used for dependency solving in Package Kit.

2. ICU (​https://review.haiku-os.org/c/haiku/+/5966/4 and ​https://github.com/haikuports/haikuports/pull/7665)

ICU 67 is now outdated, but apparently anything newer than 69 results in an unbootable system. That will need to be investigated.

Additionally, there are a number of packages that will need to be rebuilt following an ICU upgrade, so as to avoid requiring two versions of ICU with the base install.

3. Gutenprint (​https://review.haiku-os.org/c/haiku/+/5969 and #17836)

This should be straightforward.

4. OpenEXR (#18537)

See comments in that ticket: some work at HaikuPorts will be needed before this is done.

[pulkomandy]

Also add ffmpeg to this list: #17829

Probably some more functions we use are going to be deprecated, I'm OK with solving these problems if needed.

[pulkomandy]

Regarding ICU: the most likely problem is that ICU ends up calling the standard C library for some locale things. They do not take into account that our C locale support is implemented using ICU. We already patched some things like that in previous versions, and I think they were happy to upstream those patches.

The problem is investigating exactly which function is problematic.

That being said, updating to ICU 67 would already be nice :)

[kallisti5]

ICU 74 is being tracked here: ​https://review.haiku-os.org/c/haiku/+/7346

https://dev.haiku-os.org/ticket/18769 tracks the current ICU crash. Pulkomandy found the cause, just need to figure out why it's happening since we should be patching around it.

[kallisti5]

We're on ICU 74 as of hrev57575

[kallisti5]

ffmpeg6 on all x86 ports as of hrev57669

[kallisti5]

gutenprint8 updated to gutenprint9 on all x86 ports as of hrev57671