Add bundled gems for Ruby v4.0

gems/logger/.rubocop.yml

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+# This configuration inherits from /.rubocop.yml.
+# You can configure RBS style of this gem.
+# This file is used on CI. It is configured to automatically
+# make rubocop suggestions on pull requests for this gem.
+# If you do not like the style enforcement, you should remove this file.
+inherit_from: ../../.rubocop.yml
+
+##
+# If you want to customize the style, please consult with the gem reviewers.
+# You can see the list of cops at https://github.com/ksss/rubocop-on-rbs/blob/main/docs/modules/ROOT/pages/cops.adoc
+
+RBS/Layout:
+  Enabled: true
+
+RBS/Lint:
+  Enabled: true
+
+RBS/Style:
+  Enabled: true

gems/logger/1.7/formatter.rbs

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+%a{annotate:rdoc:skip}
+class Logger
+  # <!-- rdoc-file=lib/logger/formatter.rb -->
+  # Default formatter for log messages.
+  #
+  class Formatter
+    attr_accessor datetime_format: String?
+
+    # <!--
+    #   rdoc-file=lib/logger/formatter.rb
+    #   - call(severity, time, progname, msg)
+    # -->
+    #
+    def call: (String severity, Time time, untyped progname, untyped msg) -> String
+
+    private
+
+    # <!--
+    #   rdoc-file=lib/logger/formatter.rb
+    #   - format_datetime(time)
+    # -->
+    #
+    def format_datetime: (Time time) -> untyped
+
+    # <!--
+    #   rdoc-file=lib/logger/formatter.rb
+    #   - new()
+    # -->
+    #
+    def initialize: () -> void
+
+    # <!--
+    #   rdoc-file=lib/logger/formatter.rb
+    #   - msg2str(msg)
+    # -->
+    #
+    def msg2str: (String | Exception | untyped msg) -> String
+  end
+
+  interface _Formatter
+    def call: (String severity, Time time, untyped progname, untyped msg) -> _ToS
+  end
+end
+
+Logger::Formatter::Format: String

gems/logger/1.7/log_device.rbs

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+%a{annotate:rdoc:skip}
+class Logger
+  # <!-- rdoc-file=lib/logger/log_device.rb -->
+  # Device used for logging messages.
+  #
+  class LogDevice
+    include MonitorMixin
+
+    include Period
+
+    attr_reader dev: _WriteCloser
+    attr_reader filename: String?
+
+    # <!--
+    #   rdoc-file=lib/logger/log_device.rb
+    #   - close()
+    # -->
+    #
+    def close: () -> nil
+
+    # <!--
+    #   rdoc-file=lib/logger/log_device.rb
+    #   - reopen(log = nil)
+    # -->
+    #
+    def reopen: (?logdev log) -> self
+
+    # <!--
+    #   rdoc-file=lib/logger/log_device.rb
+    #   - write(message)
+    # -->
+    #
+    def write: (untyped message) -> untyped
+
+    private
+
+    # <!--
+    #   rdoc-file=lib/logger/log_device.rb
+    #   - add_log_header(file)
+    # -->
+    #
+    def add_log_header: (IO file) -> untyped
+
+    # <!--
+    #   rdoc-file=lib/logger/log_device.rb
+    #   - check_shift_log()
+    # -->
+    #
+    def check_shift_log: () -> untyped
+
+    # <!--
+    #   rdoc-file=lib/logger/log_device.rb
+    #   - create_logfile(filename)
+    # -->
+    #
+    def create_logfile: (String filename) -> File
+
+    # <!--
+    #   rdoc-file=lib/logger/log_device.rb
+    #   - new(log = nil, shift_age: nil, shift_size: nil, shift_period_suffix: nil, binmode: false, reraise_write_errors: [])
+    # -->
+    #
+    def initialize: (?untyped logdev, ?binmode: boolish, ?shift_period_suffix: String, ?shift_size: Integer, ?shift_age: Numeric | String) -> void
+
+    # <!--
+    #   rdoc-file=lib/logger/log_device.rb
+    #   - lock_shift_log() { || ... }
+    # -->
+    #
+    def lock_shift_log: () { () -> untyped } -> untyped
+
+    # <!--
+    #   rdoc-file=lib/logger/log_device.rb
+    #   - open_logfile(filename)
+    # -->
+    #
+    def open_logfile: (String filename) -> File
+
+    # <!--
+    #   rdoc-file=lib/logger/log_device.rb
+    #   - set_dev(log)
+    # -->
+    #
+    def set_dev: (logdev log) -> untyped
+
+    # <!--
+    #   rdoc-file=lib/logger/log_device.rb
+    #   - shift_log_age()
+    # -->
+    #
+    def shift_log_age: () -> true
+
+    # <!--
+    #   rdoc-file=lib/logger/log_device.rb
+    #   - shift_log_period(period_end)
+    # -->
+    #
+    def shift_log_period: (Time period_end) -> true
+  end
+end