test: fix typos in read-buffer tests

The offset-exceeding tests for readFloat contained a double test
for readFloatLE instead of one for readFloatLE and one for
readFloatBE. This is fixed in this commit.

PR-URL: nodejs#16834
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

test/parallel/test-buffer-read.js

@@ -59,13 +59,13 @@ read(buf, 'readUIntBE', [2, 0], 0xfd);
 read(buf, 'readUIntLE', [2, 0], 0x48);
 
 // attempt to overflow buffers, similar to previous bug in array buffers
-assert.throws(() => Buffer.allocUnsafe(8).readFloatLE(0xffffffff),
+assert.throws(() => Buffer.allocUnsafe(8).readFloatBE(0xffffffff),
               RangeError);
 assert.throws(() => Buffer.allocUnsafe(8).readFloatLE(0xffffffff),
               RangeError);
 
 // ensure negative values can't get past offset
-assert.throws(() => Buffer.allocUnsafe(8).readFloatLE(-1), RangeError);
+assert.throws(() => Buffer.allocUnsafe(8).readFloatBE(-1), RangeError);
 assert.throws(() => Buffer.allocUnsafe(8).readFloatLE(-1), RangeError);
 
 // offset checks