[DOCS] Fix hoodie.index.type default value description in docs

[bhasudha]

Change Logs

Update 0.11.0 plus version of docs to reflect correct default value for hoodie.index.type config. This PR - #6749 can fix the docs going forward automatically.

Impact

Describe any public API or user-facing feature change or any performance impact.

Risk level: none | low | medium | high

Choose one. If medium or high, explain what verification was done to mitigate the risks.

Documentation Update

Describe any necessary documentation update if there is any new feature, config, or user-facing change

• The config description must be updated if new configs are added or the default value of the configs are changed
• Any new feature or user-facing change requires updating the Hudi website. Please create a Jira ticket, attach the
  ticket number here and follow the instruction to make
  changes to the website.

Contributor's checklist

• Read through contributor's guide
• Change Logs and Impact were stated clearly
• Adequate tests were added if applicable
• CI passed