chore!: Update CSRF and Limiter to remove repetitive names
The `exported` rule of revive warns to not repeat the package name in
method names. For example, prefer `csrf.FromCookie` over
`csrf.CsrfFromCookie`.
This is a breaking change for v3.
It appears that these issues will not be caught by the linter until the
`exported` rule is reenabled. This requires comments on all exported
symbols, which is a much broader effort.
97da409533