Bump RuboCop to 1.10.0

[koic]

Closes #2267.

This PR bumps RuboCop to 1.10.0 and disables Naming/VariableNumber as there is no strong reason to change the names below.

% bundle exec rubocop --only Naming/VariableNumber
(snip)

Offenses:

lib/faker/default/invoice.rb:107:11: C: Naming/VariableNumber: Use
normalcase for method name numbers.
def method_731(base)
    ^^^^^^^^^^
lib/faker/default/source.rb:68:11: C: Naming/VariableNumber: Use
normalcase for method name numbers.
def print_1_to_10(legacy_lang = NOT_GIVEN, lang: :ruby)
    ^^^^^^^^^^^^^
test/faker/default/test_faker_id_number.rb:157:7: C:
Naming/VariableNumber: Use normalcase for method name numbers.
def test_chilean_verification_code_0
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
test/faker/default/test_faker_internet.rb:148:7: C:
Naming/VariableNumber: Use normalcase for method name numbers.
def test_password_with_min_length_eq_1
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
test/faker/default/test_faker_national_health_service.rb:14:7: C:
Naming/VariableNumber: Use normalcase for method name numbers.
def test_nhs_check_digit_equals_10
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
test/faker/default/test_faker_national_health_service.rb:24:7: C:
Naming/VariableNumber: Use normalcase for method name numbers.
def test_nhs_check_digit_11
    ^^^^^^^^^^^^^^^^^^^^^^^
test/test_bg_locale.rb:47:7: C: Naming/VariableNumber: Use normalcase
for method name numbers.
def test_bg_cell_number_starts_wiht_08
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
test/test_ca_cat_locale.rb:29:7: C: Naming/VariableNumber: Use
normalcase for method name numbers.
def test_ca_cat_phone_numbers_start_with_9
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
test/test_ca_cat_locale.rb:34:7: C: Naming/VariableNumber: Use
normalcase for method name numbers.
def test_ca_cat_cell_numbers_start_with_6
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
test/test_en_au_locale.rb:32:7: C: Naming/VariableNumber: Use normalcase
for method name numbers.
def test_aussie_mobiles_start_with_04
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
test/test_en_ng_locale.rb:36:7: C: Naming/VariableNumber: Use normalcase
for method name numbers.
def test_en_ng_phonenumber_starts_with_0
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

499 files inspected, 11 offenses detected