[skip e2e] Fix var-naming caused by old PRs

[congqixia]

/kind improvement

[mergify]

@congqixia E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[congqixia]

/run-cpu-e2e

[yah01]

/lgtm

[codecov]

Codecov Report

Merging #27501 (449bbeb) into master (8394b3a) will decrease coverage by 0.03%.
The diff coverage is 66.66%.

❗ Current head 449bbeb differs from pull request most recent head 6dfd7d6. Consider uploading reports for the commit 6dfd7d6 to get more accurate results

@@            Coverage Diff             @@
##           master   #27501      +/-   ##
==========================================
- Coverage   81.48%   81.46%   -0.03%     
==========================================
  Files         802      802              
  Lines      114571   114571              
==========================================
- Hits        93360    93334      -26     
- Misses      18038    18062      +24     
- Partials     3173     3175       +2     

Files	Coverage Δ
internal/datanode/data_sync_service.go	84.40% <100.00%> (ø)
pkg/util/merr/utils.go	91.97% <100.00%> (ø)
internal/datanode/flow_graph_time_tick_node.go	85.86% <0.00%> (ø)

... and 12 files with indirect coverage changes

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

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[mergify]

@congqixia E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[yah01]

/lgtm