CI: Cargo audit: Ignore RUSTSEC-2024-0436

[AfoHT]

CI Security audit is unhappy about paste

Pulled in by riscv:

paste 1.0.15
├── riscv 0.15.0
│   ├── rtic-monotonics 2.1.0
│   └── rtic 2.2.0
└── riscv 0.12.1
    └── riscv-slic 0.2.0
        └── rtic 2.2.0

and by examples/, see commit message.

Author dtolnay considers paste 'finished'

And as we only indirectly use paste we have no say if opportunistic replacement-forks will be adopted or not.

Fixes #1105