Add `compile` task in Development section

[genya0407]

When I followed the instructions in the Development section, I found some tests failing with Ruby 3.3.1 and older Rubies:

failure log

```bash $ rake test Loaded suite /Users/sangenya/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/rake-13.2.1/lib/rake/rake_test_loader Started P =================================================================================================================================================================================================================================================================================================================== Pending: test_gunzip_no_memory_leak(TestZlib): pended. /Users/sangenya/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/test-unit-ruby-core-1.0.5/lib/core_assertions.rb:192:in `rescue in assert_no_memory_leak' /Users/sangenya/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/test-unit-ruby-core-1.0.5/lib/core_assertions.rb:150:in `assert_no_memory_leak' /Users/sangenya/dev/zlib/test/zlib/test_zlib.rb:1528:in `test_gunzip_no_memory_leak' 1525: end 1526: 1527: def test_gunzip_no_memory_leak => 1528: assert_no_memory_leak(%[-rzlib], "#{<<~"{#"}", "#{<<~'};'}") 1529: d = Zlib.gzip("data") 1530: {# 1531: 10_000.times {Zlib.gunzip(d)} =================================================================================================================================================================================================================================================================================================================== E =================================================================================================================================================================================================================================================================================================================== Error: test_gzfile_read_size_boundary(TestZlibGzipReader): EOFError: end of file reached /Users/sangenya/dev/zlib/test/zlib/test_zlib.rb:1249:in `readpartial' /Users/sangenya/dev/zlib/test/zlib/test_zlib.rb:1249:in `block (2 levels) in test_gzfile_read_size_boundary' 1246: end 1247: 1248: Zlib::GzipReader.open(t.path) do |f| => 1249: f.readpartial(1024) until f.eof? 1250: assert_raise(EOFError) { f.readpartial(1) } 1251: end 1252: /Users/sangenya/dev/zlib/test/zlib/test_zlib.rb:1248:in `open' /Users/sangenya/dev/zlib/test/zlib/test_zlib.rb:1248:in `block in test_gzfile_read_size_boundary' /Users/sangenya/.rbenv/versions/3.3.0/lib/ruby/3.3.0/tempfile.rb:447:in `create' /Users/sangenya/dev/zlib/test/zlib/test_zlib.rb:1237:in `test_gzfile_read_size_boundary' =================================================================================================================================================================================================================================================================================================================== E =================================================================================================================================================================================================================================================================================================================== Error: test_read(TestZlibGzipReader): ArgumentError: wrong number of arguments (given 2, expected 0..1) /Users/sangenya/dev/zlib/test/zlib/test_zlib.rb:1000:in `read' /Users/sangenya/dev/zlib/test/zlib/test_zlib.rb:1000:in `block (2 levels) in test_read' 997: 998: assert_raise(ArgumentError) { f.read(-1, s) } 999: => 1000: assert_same s, f.read(1, s) 1001: assert_equal "\xE3".b, s 1002: 1003: assert_same s, f.read(2, s) /Users/sangenya/dev/zlib/test/zlib/test_zlib.rb:995:in `open' /Users/sangenya/dev/zlib/test/zlib/test_zlib.rb:995:in `block in test_read' /Users/sangenya/.rbenv/versions/3.3.0/lib/ruby/3.3.0/tempfile.rb:447:in `create' /Users/sangenya/dev/zlib/test/zlib/test_zlib.rb:985:in `test_read' =================================================================================================================================================================================================================================================================================================================== Finished in 0.74951 seconds. ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 95 tests, 520 assertions, 0 failures, 2 errors, 1 pendings, 0 omissions, 0 notifications 96.8421% passed ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 126.75 tests/s, 693.79 assertions/s rake aborted! Command failed with status (1) /Users/sangenya/dev/zlib/Rakefile:10:in `block in ' Tasks: TOP => test_internal (See full trace by running task with --trace) ```

It turned out that this was because I had not executed the rake compile before running rake test. We should have compile task in the Development section so that new contributors don't stumble.

FYI: CI runs rake compile test. https://github.com/ruby/zlib/blob/950dad7f4da38011db610bffb4d69f4080d76648/.github/workflows/test.yml#L42

[hsbt]

👍