[Documentation:PHP] Add types to several @param tags missing them

[MasterOdin]

Please check if the PR fulfills these requirements:

• The PR title and message follows our guidelines
• Tests for the changes have been added/updated (if possible)

What is the new behavior?

Fixes a handful of phpstan baseline errors for phpDoc @param elements that lacked a type

[codecov]

Codecov Report

Merging #4951 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #4951   +/-   ##
=========================================
  Coverage     21.33%   21.33%           
  Complexity     5551     5551           
=========================================
  Files           142      142           
  Lines         18133    18133           
=========================================
  Hits           3869     3869           
  Misses        14264    14264

Flag	Coverage Δ	Complexity Δ
#autograder	10.86% <ø> (ø)	0 <ø> (ø)	⬇️
#migrator	100% <ø> (ø)	0 <ø> (ø)	⬇️
#php	20.99% <ø> (ø)	5551 <ø> (ø)	⬇️
#python_submitty_utils	3.08% <ø> (ø)	0 <ø> (ø)	⬇️