Trickster clerics are not your traditional or stereotypical cleric.
Their gods are the patrons of thieves, scoundrels, gamblers, rebels, and liberators. The clerics themselves prefer subterfuge, pranks, deception, and theft rather than direct confrontation.
Their spells and features are designed to help themselves and their party perform acts of subterfuge.
They do not benefit very much from having a high STR
They receive neither martial weapon or heavy armor proficiencies.
The best STR weapons they can wield without feats or multiclassing are 1d6's one handed or 1d8 two handed.
The difference between using a mace 1d6 + 2(STR) and a dagger 1d4 + 2(DEX), which both will have the same hitchance, is an average of 1 damage per hit.
They don't need STR to wear halfplate, which gives them 1 AC less than full plate. I would recommend wearing breastplate however, so that you don't have disadvantage on stealth rolls.
A decent DEX helps them with their sneakery
A decent CON helps them maintain concentration spells like Spirit guardians
A high WIS is necessary because their spells rely on it, along with increasing their ability to detect lies and scout for the party
A decent CHA helps them trick and deceive enemies, which along with their domain spells, helps them infiltrate places they aren't supposed to be
