CI: fix failing tests because of hash.wyhash duplicates

vlib/hash/hash_wyhash_test.v

@@ -0,0 +1,29 @@
+import hash as wyhash
+
+struct WyHashTest {
+	s        string
+	seed     u64
+	expected u64
+}
+
+fn test_wyhash() {
+	tests := [WyHashTest{
+		'',0,0x0},
+	WyHashTest{
+		'v',1,0xc72a8f8bdfdd82},
+	WyHashTest{
+		'is',2,0xa1099c1c58fc13e},
+	WyHashTest{
+		'the best',3,0x1b1215ef0b0b94c},
+	WyHashTest{
+		'abcdefghijklmnopqrstuvwxyz',4,0x6db0e773d1503fac},
+	WyHashTest{
+		'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789',5,0xe062dfda99413626},
+	]
+	for test in tests {
+		got := wyhash.sum64(test.s.bytes(), test.seed)
+		// println(' #      GOT: $got | $got.hex()')
+		// println(' # EXPECTED: $test.expected | $test.expected.hex()')
+		assert got == test.expected
+	}
+}