gh-126524: Run regen-unicodedata as a part of our CI (GH-126682)

(cherry picked from commit ad9d059)

Co-authored-by: sobolevn <[email protected]>

Author: sobolevn

.github/workflows/build.yml

@@ -173,7 +173,7 @@ jobs:
           # so we run it before regen-global-objects gets rum (in regen-all).
           make regen-deepfreeze
           make -j4 regen-all
-          make regen-stdlib-module-names regen-sbom
+          make regen-stdlib-module-names regen-sbom regen-unicodedata
       - name: Check for changes
         run: |
           git add -u