Revert "(CONT-801) Deprecate uriescape.rb"

This reverts commit 799d608.

While uriescape was deprecated for Puppet 8 in puppetlabs#1307
it was already fixed earlier for Puppet 8 and ruby 3 in puppetlabs#1195

It is unclear to me why this function was deprecated.

* Fixes puppetlabs#1401

lib/puppet/parser/functions/uriescape.rb

@@ -15,13 +15,8 @@ module Puppet::Parser::Functions
     @return [String]
       a string that contains the converted value
 
-    > **Note:**  **Deprecated:** Starting Puppet 8, our Ruby version has upgraded to 3.2.
-    Therefore, its no longer possible to call URI.escape as it was deprecated by 2.7 and removed completely by 3+.
-    This function should be removed once Puppet 7 is no longer supported.
   DOC
   ) do |arguments|
-    raise(Puppet::ParseError, 'Puppet: This function is not available in Puppet 8. URI.escape no longer exists as of Ruby 3+.') if Puppet::Util::Package.versioncmp(Puppet.version, '8').positive?
-
     raise(Puppet::ParseError, "uriescape(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     value = arguments[0]

spec/functions/uriescape_spec.rb

@@ -39,9 +39,5 @@
       it { is_expected.to run.with_params(['one}', 'two']).and_return(['one%7D', 'two']) }
       it { is_expected.to run.with_params(['one}', 1, true, {}, 'two']).and_return(['one%7D', 1, true, {}, 'two']) }
     end
-  else
-    describe 'raising errors in Puppet 8' do
-      it { is_expected.to run.with_params([]).and_raise_error(Puppet::ParseError, %r{This function is not available in Puppet 8. URI.escape no longer exists as of Ruby 3+.}) }
-    end
   end
 end