Fix failing test 3I 6D and 4H

[kneerose]

List of changes

• Add st , nd, rd on the date regex of extractExpiryDateFromText function.
• Remove the "learn more" assertion on disconnect state as "learn more" for proposing a governance action is no longer on dashboard.
• Add an exact match for "In Progress" on the assertion for dRep registration, as "In Progress" is also taken from "DRep registration in progress"

Checklist

• related issue
• My changes generate no new warnings
• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the changelog
• I have added tests that prove my fix is effective or that my feature works

[NabinKawan]

Looks good!