Merge dev branch (minor breaking changes)

From the perspective of the master branch, this commit merges in a
few small breaking changes from the dev branch:

6b0066c5ef
- Make pullPendingFromPool() $firstOrCreate arg default to false
  (pullPending() is now a direct alias for pullPendingFromPool() with
  default $firstOrCreate=true)
- See full commit message for other changes. They shouldn't be breaking
  though.

13a2209f11
- Remove $WAL static property. We instead just let Laravel use its
  journal_mode config now

This merge also adds a deprecation:

b320f8f33d
- Deprecate TenantConfig feature in favor of TenantConfigBootstrapper

src/Middleware/PreventAccessFromUnwantedDomains.php

@@ -66,9 +66,11 @@ class PreventAccessFromUnwantedDomains
         return in_array($request->getHost(), config('tenancy.identification.central_domains'), true);
     }
 
-    // todo@samuel technically not an identification middleware but probably ok to keep this here
     public function requestHasTenant(Request $request): bool
     {
+        // This middleware is special in that it's not an identification middleware
+        // but still uses some logic from UsableWithEarlyIdentification, so we just
+        // need to implement this method here. It doesn't matter what it returns.
         return false;
     }
 }