build: use Nathan's CCDB fork

[c-dilks]

This PR switches the CCDB submodule to use @baltzell's fork of CCDB, which is the version we use in other CLAS12 software.

[baltzell]

We'll get this upstream by the end of the year, meanwhile, yes, need that fork.

[dglazier]

Hi @c-dilks , @baltzell
Should I go ahead and merge the pul request with master at the moment? Or should we wait until the ccdb module is linked to a JeffersonLab project ?
Cheers
Derek

[baltzell]

Or should we wait until the ccdb module is linked to a JeffersonLab project ?

That could be a long time off ...

[c-dilks]

Should I go ahead and merge the pul request with master at the moment?

Yes, as long as things still work here. The CI test passes, at least.