test: increase allocation so it fails for the test

It used to be impossible to allocate 1e10 bytes but with a v8 update
this allocation can succeed. This results in 2x10GB allocations and
failure to test the failure :-)

Increase allocation to 1e20 bytes, which should fail for some time,
returning the test to using only 50MB at runtime.

Fixes: nodejs#53085

test/parallel/test-buffer-failed-alloc-typed-arrays.js

@@ -12,7 +12,7 @@ const SlowBuffer = require('buffer').SlowBuffer;
 // whether or not to zero-fill was not being reset, causing TypedArrays to
 // allocate incorrectly.
 const zeroArray = new Uint32Array(10).fill(0);
-const sizes = [1e10, 0, 0.1, -1, 'a', undefined, null, NaN];
+const sizes = [1e20, 0, 0.1, -1, 'a', undefined, null, NaN];
 const allocators = [
   Buffer,
   SlowBuffer,