[3.14] pythongh-126524: Revert "pythongh-126524: Run regen-unicodedata as a part of our CI pythonGH-126682" (pythonGH-138197) (python#138218)

pythongh-126524: Revert "pythongh-126524: Run `regen-unicodedata` as a part of our CI pythonGH-126682" (pythonGH-138197)
(cherry picked from commit 03f8d3b)

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

Author: miss-islington

.github/workflows/build.yml

@@ -177,7 +177,7 @@ jobs:
       - name: Build CPython
         run: |
           make -j4 regen-all
-          make regen-stdlib-module-names regen-sbom regen-unicodedata
+          make regen-stdlib-module-names regen-sbom
       - name: Check for changes
         run: |
           git add -u