overrides: fix patch for imagecodecs

[yzx9]

Contribution checklist (recommended but not always applicable/required):

• There's an automated test for this change
• Commit messages or code include references to related issues or PRs (including third parties)
• Commit messages are conventional - examples from the log include "feat: add changelog files to fixup hook", "fix(contourpy): allow wheel usage", and "test: add sqlalchemy2 test"

---

This PR fixes the following error:

error: builder for '/nix/store/v1bz2vfmfapa4h986gz26sg214sw8559-python3.12-imagecodecs-2024.6.1.drv' failed with exit code 2;
       last 10 log lines:
       > Using pypaInstallPhase
       > Sourcing python-imports-check-hook.sh
       > Using pythonImportsCheckPhase
       > Sourcing python-namespaces-hook
       > Sourcing python-catch-conflicts-hook.sh
       > Running phase: unpackPhase
       > Executing wheelUnpackPhase
       > Finished executing wheelUnpackPhase
       > Running phase: patchPhase
       > /nix/store/hix7sl0wxajb5aq14afjdvzc3w0i8b14-stdenv-linux/setup: eval: line 1716: unexpected EOF while looking for matching `"
'
       For full logs, run 'nix log /nix/store/v1bz2vfmfapa4h986gz26sg214sw8559-python3.12-imagecodecs-2024.6.1.drv'.

[yzx9]

@adisbladis Hey, the rebase of this PR failed, and I'm not sure what went wrong. Could you take another look?