TEMP: install dandischema from dandi-schema#371 (enh-hed branch)

This enables CI to test against the unreleased dandischema that has
the dataStandard field and StandardsType enhancements.

TO BE REVERTED before merge.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: yarikoptic

pyproject.toml

@@ -47,10 +47,11 @@ dependencies = [
     "bids-validator-deno >= 2.0.5",
     "click >= 8.2",
     "click-didyoumean >= 0.3.1",
-    # Exclude 0.13.0: it lacks the downgrade migrations (SIMPLE_DOWNGRADES
-    # entries for releaseNotes / sameAs) that the client relies on to talk
-    # to older Archive servers.  0.14.0 restored them.
-    "dandischema >= 0.12.0, != 0.13.0, < 0.15.0",
+    # TEMP: until dandi-schema#371 is released; then restore
+    # "dandischema >= 0.12.0, != 0.13.0, < 0.16.0" and make sure the version
+    # checked for _SCHEMA_BAREASSET_HAS_DATASTANDARD in dandi/files/bases.py
+    # is the one of that release.
+    "dandischema @ git+https://github.com/dandi/dandi-schema.git@enh-hed",
     "etelemetry >= 0.2.2",
     "fasteners >= 0.19",
     "fscacher >= 0.3.0",