Refactor ci to reuse base workflow and re-enable ut coverage (#3064)

### What this PR does / why we need it?
1. Refactor ci to reuse base workflow and enable main 2 hours trigger
job:
- Extract e2e test in to _e2e_test.yaml
- Reuse _e2e_test in light / full job
- Enable main 2 hours trigger job

2. Rename e2e test to ascend test to make sure action display label 
3. Re-enable ut coverage which was failed since
5bcb4c1528
and disable on
6d8bc38c7b

### Does this PR introduce _any_ user-facing change?
Only developer behavior changes:
- Every job trigger full test with vllm release and hash
- Run full job per 2 hours with vllm main
- e2e light test (30 mins): `lint` (6mins) ---> ut (10mins) --->
`v0.10.2 + main / 4 jobs` (15mins)
- e2e full test (1.5h): `ready label` ---> `v0.10.2 + main / 4 jobs`,
about 1.5h
- schedule test: 2hours ---> `v0.10.2 + main / 4 jobs`, about 1.5h 

### How was this patch tested?
CI passed


- vLLM version: v0.10.2
- vLLM main:
c60e6137f0

Signed-off-by: Yikun Jiang <yikunkero@gmail.com>

.github/workflows/accuracy_test.yaml

@@ -19,7 +19,7 @@
 # 1. PR labeled with: '*accuracy-test' (ONLY 1 label valid) & 'ready-for-test'
 # 2. workflow_dispatch with models input
 # See detail rule in strategy.matrix note
-name: Benchmarks / accuracy
+name: ascend test / accuracy
 
 on:
   schedule: