all: Go back to using default ruff quote style.

Commit dc2fcfcc55 seems to have accidentally
changed the ruff quote style to "preserve", instead of keeping it at the
default which is "double".

Put it back to the default and update relevant .py files with this rule.

Signed-off-by: Damien George <damien@micropython.org>

tests/extmod/deflate_compress_memory_error.py

@@ -28,7 +28,7 @@ l.pop()
 
 # Try to compress.  This will try to allocate a large window and fail.
 try:
-    g.write('test')
+    g.write("test")
 except MemoryError:
     print("MemoryError")
 

tests/extmod/json_loads.py

@@ -86,7 +86,7 @@ except ValueError:
 
 # incomplete array declaration
 try:
-    my_print(json.loads('[0,'))
+    my_print(json.loads("[0,"))
 except ValueError:
     print("ValueError")
 

tests/extmod/json_loads_int_64.py

@@ -13,4 +13,4 @@ print(json.loads("9111222333444555666"))
 print(json.loads("-9111222333444555666"))
 print(json.loads("9111222333444555666"))
 print(json.loads("-9111222333444555666"))
-print(json.loads("[\"9111222333444555666777\",9111222333444555666]"))
+print(json.loads('["9111222333444555666777",9111222333444555666]'))

tests/extmod/tls_dtls.py

@@ -35,7 +35,7 @@ client_socket = DummySocket()
 dtls_server_ctx = SSLContext(PROTOCOL_DTLS_SERVER)
 dtls_server_ctx.verify_mode = CERT_NONE
 dtls_server = dtls_server_ctx.wrap_socket(
-    server_socket, do_handshake_on_connect=False, client_id=b'dummy_client_id'
+    server_socket, do_handshake_on_connect=False, client_id=b"dummy_client_id"
 )
 print("Wrapped DTLS Server")