(cbor) Handle case of BigDecimal with Integer.MIN_VALUE for scale gracefully

[cowtowncoder]

(note: this issue https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32381 from oss-fuzz)

Looks like attempts to normalize BigDecimal using method stripTrailingZeros() fails on a specific case of BigDecimal value with smallest possible scale value, probably since Integer.MIN_VALUE does not have matching opposite positive value.
This issue will need to be fixed in jackson-databind, but filing here since it is most easily exposed via binary codecs (not sure how to trigger textual version).

[cowtowncoder]

Fixed: actual fix in jackson-databind but regression test under cbor repo (since I could not figure out how to trigger via textual representation).