Remove source of uv env file - PATH already set

The 'Fix PATH for local tools' step already adds ~/.local/bin to PATH,
so we don't need to source the uv env file. This was causing an error
because the env file didn't exist yet at that point in the workflow.

Use explicit path to uv (~/.local/bin/uv) instead of relying on PATH.

Signed-off-by: Gary Oberbrunner <[email protected]>

Author: garyo

.github/workflows/build.yml

@@ -208,12 +208,11 @@ jobs:
         if: matrix.vfx-cy == 2021 || matrix.vfx-cy == 2022
         run: |
           curl -LsSf https://astral.sh/uv/install.sh | sh
-          source ~/.local/bin/env
-          echo "After sourcing uv env, PATH=$PATH"
+          # No need to source env - we already added ~/.local/bin to PATH above
 
           # Use --default to create python/python3 symlinks in ~/.local/bin
           # This ensures the sigstore action can find 'python' (not just 'python3')
-          uv python install --default 3.11
+          ~/.local/bin/uv python install --default 3.11
 
       - name: Check python, uv paths
         run: |