Skip some examples for Ruby 3.3

spec/ruby/core/encoding/replicate_spec.rb

@@ -67,7 +67,7 @@ describe "Encoding#replicate" do
     end
   end
 
-  ruby_version_is "3.3" do
+  ruby_version_is "3.4" do
     it "has been removed" do
       Encoding::US_ASCII.should_not.respond_to?(:replicate, true)
     end

spec/ruby/core/float/round_spec.rb

@@ -136,7 +136,7 @@ describe "Float#round" do
     -4.809999999999999.round(5, half: :even).should eql(-4.81)
   end
 
-  ruby_bug "", ""..."3.3" do
+  ruby_bug "", ""..."3.4" do
     # These numbers are neighbouring floating point numbers round a
     # precise value. They test that the rounding modes work correctly
     # round that value and precision is not lost which might cause

spec/ruby/core/integer/left_shift_spec.rb

@@ -191,7 +191,7 @@ describe "Integer#<< (with n << m)" do
       (0 << bignum_value).should == 0
     end
 
-    ruby_bug "#18518", ""..."3.3" do
+    ruby_bug "#18518", ""..."3.4" do
       it "raises NoMemoryError when m > 0 and n != 0" do
         coerce_long = mock("long")
         coerce_long.stub!(:to_int).and_return(2**40)

spec/ruby/core/integer/right_shift_spec.rb

@@ -213,7 +213,7 @@ describe "Integer#>> (with n >> m)" do
       (0 >> -bignum_value).should == 0
     end
 
-    ruby_bug "#18518", ""..."3.3" do
+    ruby_bug "#18518", ""..."3.4" do
       it "raises NoMemoryError when m < 0 and n != 0" do
         coerce_long = mock("long")
         coerce_long.stub!(:to_int).and_return(-(2**40))

spec/ruby/language/regexp_spec.rb

@@ -114,7 +114,7 @@ describe "Literal Regexps" do
     /foo.(?<=\d)/.match("fooA foo1").to_a.should == ["foo1"]
   end
 
-  ruby_bug "#13671", ""..."3.3" do # https://bugs.ruby-lang.org/issues/13671
+  ruby_bug "#13671", ""..."3.4" do # https://bugs.ruby-lang.org/issues/13671
     it "handles a lookbehind with ss characters" do
       r =  Regexp.new("(?<!dss)", Regexp::IGNORECASE)
       r.should =~ "✨"