Use Integer.MIN_VALUE in coerceFromLong range check

Make the Integer range check consistent with Short and Byte conversions
by using Integer.MIN_VALUE instead of checking for < 0. This ensures all
narrowing conversions follow the same pattern and correctly handle the
full range of Integer values.

Addresses PR feedback in #309.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: oschwald

src/main/java/com/maxmind/db/Decoder.java

@@ -290,7 +290,7 @@ private static Object coerceFromLong(long value, Class<?> target) {
             return value;
         }
         if (target.equals(Integer.TYPE) || target.equals(Integer.class)) {
-            if (value < 0 || value > Integer.MAX_VALUE) {
+            if (value < Integer.MIN_VALUE || value > Integer.MAX_VALUE) {
                 throw new DeserializationException("Value " + value + " out of range for int");
             }
             return (int) value;