`symbol-z-elevate` does not work when `text-pitch-alignment` is `map`

**mapbox-gl-js version**: 5.3.0-beta.1

**browser**: Chrome

### Steps to Trigger Behavior

1. Add a `fill-extrusion` layer
2. Add a `symbol` layer on top
3. Set `symbol-z-elevate` to `true` on the `symbol` layer
4. Set `text-pitch-alignment` to `map` on the `symbol` layer
5. Observe symbols stay clamped to the ground even when on top of fill extrusions.

### Link to Demonstration

I'll provide a demonstration if needed for reproduction.

### Expected Behavior

Symbols are draped onto the top side of fill extrusions.

### Actual Behavior

Symbols are draped onto the map's ground level.

Reproduce the issue in mapbox-gl-js with a fill-extrusion layer and a symbol layer using symbol-z-elevate and text-pitch-alignment set to map. Start by tracing the symbol elevation and placement behavior for these layer settings, then verify that symbols are draped onto the top of fill extrusions rather than the ground level.

Written by the indexing model from the issue text.