build(deps): bump third_party/icestorm from `04f1eb7` to `0ec00d8`
build(deps): bump third_party/icestorm from `04f1eb7` to `0ec00d8`

Bumps [third_party/icestorm](https://github.com/cliffordwolf/icestorm) from `04f1eb7` to `0ec00d8`.
- [Release notes](https://github.com/cliffordwolf/icestorm/releases)
- [Commits](https://github.com/cliffordwolf/icestorm/compare/04f1eb78ed8fd50516aee50102675041a8fd40cd...0ec00d892a91cc68e45479b46161f649caea2933)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
SymbiFlow/symbiflow-arch-defs,SymbiFlow/symbiflow-arch-defs