Phys_Location in TO API uses non-RFC3339 date/time strings

[jagan-parthiban]

Parent Issue: #5911

Breaking down the parent issue #5911 in smaller issues to raise separate, reviewable PRs for each of the services.

Traffic Control components affected:

• Traffic Ops
• Documentation

Current behavior:

Phys_Location Using Deprecated TimeNoMod & TimeLayout

curl --request GET \
  --url https://localhost:8443/api/4.1/phys_locations


{
	"response": [
		{
			"address": "Buckingham Palace",
			"city": "London",
			"comments": "Buckingham Palace",
			"email": "steve.kingstone@royal.gsx.gov.uk",
			"id": 41,
			"lastUpdated": "2023-07-09 18:56:27+05",
			"name": "New_Scot",
			"phone": "0-843-816-6276",
			"poc": "Her Majesty The Queen Elizabeth Alexandra Mary Windsor II",
			"regionId": 71,
			"region": "Scotland",
			"shortName": "new_scot",
			"state": "Westminster",
			"zip": "SW1A 1AA"
		},
	]
}

Expected behavior:

Phys_Location to Use RFC3339 Format

curl --request GET \
  --url https://localhost:8443/api/5.0/phys_locations


{
	"response": [
		{
			"address": "Buckingham Palace",
			"city": "London",
			"comments": "Buckingham Palace",
			"email": "steve.kingstone@royal.gsx.gov.uk",
			"id": 41,
			"lastUpdated": "2023-07-09T18:56:27.057163+05:30",
			"name": "New_Scot",
			"phone": "0-843-816-6276",
			"poc": "Her Majesty The Queen Elizabeth Alexandra Mary Windsor II",
			"regionId": 71,
			"region": "Scotland",
			"shortName": "new_scot",
			"state": "Westminster",
			"zip": "SW1A 1AA"
		},

	]
}

Steps to reproduce:

Make the above api call to 4.1 version