### What this PR does / why we need it?
Bump version to v0.11.0rc2 and prepare vLLM Ascend v0.11.0rc0
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
CI passed
- vLLM version: v0.10.2
- vLLM main:
https://github.com/vllm-project/vllm/commit/releases/v0.11.0
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Signed-off-by: Yikun Jiang <yikunkero@gmail.com>