CLDR-18097 BRS 46.1 Update cldr & spec versions & status, extend test skip

[pedberg-icu]

CLDR-18097

• This PR completes the ticket.

• Update version, status, date in README
• Update version, status, date in spec (version update here will require bumping version on main branch to accommodate this version, see CLDR-18101)
• Update version in pom files
• Update CLDRFile.GEN_VERSION, ToolConstants.DEV_VERSION, ToolConstants.CLDR_VERSIONS, CldrVersion enum
• Update cldrVersion in dtds (there is a test that requires it be consistent with CLDRFile.GEN_VERSION, ToolCOnstants.DEV_VERSION); this means we need updated dtds for 46.1. But note, did not update the cldrVersion or conformsTo list for ldmlKeyboard3 dtd/xsd since a decimal version does not work for a conformsTo value.
• Extend currency coverage test skip to include 46.1, add test skip for languages newly failing name coverage test (both coverage issues are already fixed in coverage for CLDR 47).

Note this change is only for the maint/maint-46 branch and not relevant for main.

ALLOW_MANY_COMMITS=true

[jira-pull-request-webhook]

Hooray! The files in the branch are the same across the force-push. 😃

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[macchiati]

LGTM (there are still test failures though)

[jira-pull-request-webhook]

Hooray! The files in the branch are the same across the force-push. 😃

~ Your Friendly Jira-GitHub PR Checker Bot

[pedberg-icu]

LGTM (there are still test failures though)

@macchiati Yes, there were some languages newly failing the name coverage test (did not see it in my local tests). Here I just added a test skip, the actual coverage is already updated in CLDR 47. That fixed the test failure here.