[workflows/build.yml] Temporary workaround for Python 3.4/5 failures

actions/setup-python#866

Author: dirkf

.github/workflows/build.yml

@@ -127,6 +127,8 @@ jobs:
     needs: build_unix
     env:
       PYCRYPTO: pycrypto-2.6.1-cp34-none-win32
+      # Temporary workaround for Python 3.4/5 failures - May 2024
+      PIP_TRUSTED_HOST: "pypi.python.org pypi.org files.pythonhosted.org"
     outputs:
       sha256_win: ${{ steps.sha256_win.outputs.sha256_win }}
       sha512_win: ${{ steps.sha512_win.outputs.sha512_win }}