Bump luatest to 1.0.1-5-g105c69d

[nshy]

New version includes the following commits.

• Add assert_error_covers(expected, fn, ...) [1]
• Improve luatest.log function if a nil value is passed [2]
• Add memory leak detection during server process execution [3]
• Improve log submodule of luatest [4]
• Add logging to unified file [5]
• (tag: 1.0.1) Release 1.0.1 [6]
• Add syntax sugar for more convenient logging [7]

[1] tarantool/luatest@105c69d [2] tarantool/luatest@15dbf75 [3] tarantool/luatest@e3ea6fc [4] tarantool/luatest@9e0776e [5] tarantool/luatest@f8a1c10 [6] tarantool/luatest@6009417 [7] tarantool/luatest@a005329

[coveralls]

coverage: 62.54% (+0.03%) from 62.506% when pulling 7b2c3cf396f4ef020c14f9b5efb6760bc9a5871d on nshy:bump-luatest-version into 7c1a0a7086704293de212c9cd44f66996f7be5db on tarantool:master.