Fix Sorbet type errors and RuboCop linting issues

Fixed all Sorbet type errors and RuboCop linting issues:

Sorbet fixes:
- Wrapped Regexp.last_match(1) and Regexp.last_match(2) with T.must()
  to assert non-nil values (safe since we're inside a regex match)
- This satisfies the T::Hash[String, String] type requirement

RuboCop fixes:
- Style/Next: Changed if block to use next unless pattern
- Lint/UnusedBlockArgument: Renamed unused env: to _env: in test mocks
- Layout/FirstMethodArgumentLineBreak: Added line break before first arg
- Style/PercentLiteralDelimiters: Changed %w[] to %w() delimiter

Verification:
- bundle exec srb tc: No errors!
- bundle exec rubocop: No offenses detected

Co-authored-by: kbukum1 <171620528+kbukum1@users.noreply.github.com>

Author: Copilot

gradle/lib/dependabot/gradle/file_updater/wrapper_updater.rb

@@ -189,12 +189,11 @@ def update_distribution_properties(properties_file, original_content)
           # Extract the new values for distributionUrl and distributionSha256Sum
           new_content.each_line do |line|
             next if line.strip.start_with?("#") || line.strip.empty?
+            next unless line =~ /^(distributionUrl|distributionSha256Sum)=(.*)$/
 
-            if line =~ /^(distributionUrl|distributionSha256Sum)=(.*)$/
-              key = ::Regexp.last_match(1)
-              value = ::Regexp.last_match(2)
-              updated_values[key] = value
-            end
+            key = T.must(::Regexp.last_match(1))
+            value = T.must(::Regexp.last_match(2))
+            updated_values[key] = value
           end
 
           # Duplicate to avoid mutating the parameter

gradle/spec/dependabot/gradle/file_updater_spec.rb

@@ -809,7 +809,7 @@
 
           before do
             # Mock the file operations to simulate the wrapper command updating the properties
-            allow(Dependabot::SharedHelpers).to receive(:run_shell_command) do |_command, cwd:, env:|
+            allow(Dependabot::SharedHelpers).to receive(:run_shell_command) do |_command, cwd:, _env:|
               # Simulate the wrapper command updating the properties file with defaults
               properties_file = File.join(cwd, "gradle/wrapper/gradle-wrapper.properties")
               if File.exist?(properties_file)
@@ -885,7 +885,7 @@
 
           before do
             # Mock the file operations to simulate the wrapper command updating the properties
-            allow(Dependabot::SharedHelpers).to receive(:run_shell_command) do |_command, cwd:, env:|
+            allow(Dependabot::SharedHelpers).to receive(:run_shell_command) do |_command, cwd:, _env:|
               # Simulate the wrapper command generating a new file without comments
               properties_file = File.join(cwd, "gradle/wrapper/gradle-wrapper.properties")
               if File.exist?(properties_file)
@@ -922,15 +922,17 @@
           it "maintains the original property order" do
             lines = updated_buildfile.content.lines.reject { |l| l.strip.start_with?("#") || l.strip.empty? }
             property_names = lines.map { |l| l.split("=").first }
-            expect(property_names).to eq(%w[
-              distributionBase
-              distributionPath
-              distributionUrl
-              networkTimeout
-              validateDistributionUrl
-              zipStoreBase
-              zipStorePath
-            ])
+            expect(property_names).to eq(
+              %w(
+                distributionBase
+                distributionPath
+                distributionUrl
+                networkTimeout
+                validateDistributionUrl
+                zipStoreBase
+                zipStorePath
+              )
+            )
           end
         end
       end