create_area_def produces area definition with invalid latitudes

Code Sample, a minimal, complete, and verifiable piece of code

from pyresample import create_area_def
ar = create_area_def(
        "fribullus_xax", 4326, units="degrees",
        resolution=0.1, center=(0, 90), shape=(5, 5))
print(ar.get_lonlats()[1])

Problem description

The latitudes returned are invalid.

Expected Output

[[89.8 89.8 89.8 89.8 89.8]
 [89.9 89.9 89.9 89.9 89.9]
 [90.  90.  90.  90.  90. ]
 [89.9 89.9 89.9 89.9 89.9]
 [89.8 89.8 89.8 89.8 89.8]]

Or maybe an exception that the operation is invalid.

Actual Result, Traceback if applicable

[[90.2 90.2 90.2 90.2 90.2]
 [90.1 90.1 90.1 90.1 90.1]
 [90.  90.  90.  90.  90. ]
 [89.9 89.9 89.9 89.9 89.9]
 [89.8 89.8 89.8 89.8 89.8]]

Versions of Python, package at hand and relevant dependencies

pyresample v1.22.3-14-ga742fd8

Start at the create_area_def entry point and reproduce the provided example, then inspect how get_lonlats() calculates latitude values for a center at 90 degrees. Done means the result stays within valid latitude bounds and matches the expected output, or the operation raises an exception if the definition is invalid.