Enhancement: Bump pwsh 7.2 variants to 7.2.16

Signed-off-by: The Oh Brothers Bot <bot@theohbrothers.com>

Author: theohbrothersbot

generate/definitions/versions.json

@@ -2,7 +2,7 @@
   "pwsh": {
     "versions": [
       "7.3.9",
-      "7.2.15"
+      "7.2.16"
     ],
     "versionsChangeScope": "minor",
     "versionsNewScript": "Invoke-WebRequest https://api.github.com/repos/powershell/powershell/git/refs/tags | ConvertFrom-Json | % { $_.ref -replace 'refs/tags/v', '' } | ? { $_ -match '^\\d+\\.\\d+\\.\\d+$' } | Sort-Object { [version]$_ } -Descending | ? { [version]$_ -ge [version]'7.2' }"