Bump elliptic from 6.5.3 to 6.6.0 in /sentry-rails/examples/rails-6.0 #3524

Job	Run time
Ruby 2.7 & Sidekiq 5.0, options - null	35s
Ruby 3.0 & Sidekiq 5.0, options - null	23s
Ruby 3.1 & Sidekiq 5.0, options - null	22s
Ruby 3.2 & Sidekiq 5.0, options - null	25s
Ruby 3.3 & Sidekiq 5.0, options - null	35s
Ruby jruby & Sidekiq 5.0, options - null	50s
Ruby 2.7 & Sidekiq 6.5, options - null	40s
Ruby 3.0 & Sidekiq 6.5, options - null	20s
Ruby 3.1 & Sidekiq 6.5, options - null	22s
Ruby 3.2 & Sidekiq 6.5, options - null	27s
Ruby 3.3 & Sidekiq 6.5, options - null	31s
Ruby jruby & Sidekiq 6.5, options - null	1m 4s
Ruby 2.7 & Sidekiq 7.0, options - null	33s
Ruby 3.0 & Sidekiq 7.0, options - null	23s
Ruby 3.1 & Sidekiq 7.0, options - null	26s
Ruby 3.2 & Sidekiq 7.0, options - { "rubyopt": "--enable-frozen-string-literal --debug=frozen-string-literal" }	21s
Ruby 3.3 & Sidekiq 7.0, options - null	22s
Ruby jruby & Sidekiq 7.0, options - null	55s
Ruby 2.4 & Sidekiq 5, options - null	31s
Ruby 2.5 & Sidekiq 5, options - null	37s
Ruby 2.5 & Sidekiq 6, options - null	31s
Ruby 2.6 & Sidekiq 5, options - null	43s
Ruby 2.6 & Sidekiq 6, options - null	37s
Ruby jruby & Sidekiq 6, options - null	57s
	13m 30s

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