update reservation-client Chart

[WeihanLi]

What this PR does / why we need it:

some update for helm 3 and add additional info

Special notes for your reviewer:

If applicable:

• [x] this PR contains documentation (是否包含文档)
• [x] this PR contains unit tests (是否包含测试、实际环境有效性验证)
• [x] this PR has been tested for backwards compatibility (是否向后兼容)

[wonderflow]

LGTM

[WeihanLi]

PR 合并之后好像没有自动更新 chart ？现在 chart 同步到 hub 的频率是多久同步一次？ @wonderflow

[wonderflow]

近期在对apphub的charts做分类调整，调整完成后会同步