[BugFix][Config] Disable static kernel for MiniMax tests (#15034)

### What this PR does / why we need it?

Disable `ascend_compilation_config.enable_static_kernel` in the
following MiniMax weekly/nightly test configurations:

- `tests/e2e/weekly/single_node/configs/Minimax_M2.7_w8a8_A3.yaml`
-
`tests/e2e/nightly/single_node/models/configs/MiniMax-M2.5-w8a8-QuaRot-A2.yaml`
-
`tests/e2e/nightly/single_node/models/configs/Minimax_m2.7_w8a8_A3.yaml`

The change is limited to setting the existing schema-valid option from
`true` to `false`.

### Does this PR introduce _any_ user-facing change?

No. This only updates nightly and weekly test configurations.

### How was this patch tested?

- Parsed all three changed YAML files.
- Parsed all three embedded `--additional-config` JSON objects.
- Constructed the current `AscendCompilationConfig` for each changed
value and verified `enable_npugraph_ex=true` and
`enable_static_kernel=false`.
- `git diff --check`.
- Pre-commit checks on the three changed YAML files passed.

NPU execution is left to CI because the local WSL environment does not
provide `torch_npu`.

- vLLM version: v0.27.1
- vLLM main:
https://github.com/vllm-project/vllm/commit/ba07e4a48fc951300d97eb506217dd530583dea3

Signed-off-by: RuiZhang <wfzrpku@gmail.com>