REVIEW: Update Data Builder

This is a bad version number due to
opensafely-core/ehrql#651

It's necessary to get a newer version that supports loading data from
a directory of CSVs.

databuilder/requirements.prod.in

@@ -6,4 +6,4 @@ snex
 
 # Dependabot doesn't seem to touch this dependency, likely because it's pinned,
 # so we have a script to update it, run: just databuilder/upgrade-databuilder
-https://github.com/opensafely-core/databuilder/archive/refs/tags/v0.40.6.zip
+https://github.com/opensafely-core/databuilder/archive/refs/tags/docs-metadata-b61c95630b57a844dcd72d091596e13f9ba5a4b7.zip

databuilder/requirements.prod.txt

@@ -160,8 +160,8 @@ numpy==1.23.1 \
     # via
     #   pandas
     #   pyarrow
-opensafely-databuilder @ https://github.com/opensafely-core/databuilder/archive/refs/tags/v0.40.6.zip \
-    --hash=sha256:fbe2e9ad09397da56af430ddb8bd2c3a04e71bff79cc3ba6d30207a592d3cd7b
+opensafely-databuilder @ https://github.com/opensafely-core/databuilder/archive/refs/tags/docs-metadata-b61c95630b57a844dcd72d091596e13f9ba5a4b7.zip \
+    --hash=sha256:84b8be8afc8cde2dae5a615d767f117ede523f04f40de466d35490e5312a95d7
     # via -r databuilder/requirements.prod.in
 pandas==1.4.3 \
     --hash=sha256:07238a58d7cbc8a004855ade7b75bbd22c0db4b0ffccc721556bab8a095515f6 \