Bump lark-parser from 0.7.3 to 0.7.4

Bumps [lark-parser](https://github.com/erezsh/lark) from 0.7.3 to 0.7.4.
- [Release notes](https://github.com/erezsh/lark/releases)
- [Commits](lark-parser/lark@0.7.3...0.7.4)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

requirements-dev.txt

@@ -2,7 +2,7 @@ colorama
 docutils
 flake8
 click
-lark-parser==0.7.3
+lark-parser==0.7.4
 # git+git://github.com/erezsh/lark.git#egg=lark
 pluggy
 py

setup.py

@@ -36,7 +36,7 @@ def readme():
       author_email='sethg@geographika.co.uk',
       license='MIT',
       packages=['mappyfile'],
-      install_requires=['lark-parser==0.7.3', 'jsonschema >=2.0', 'jsonref==0.2', 'click'],
+      install_requires=['lark-parser==0.7.4', 'jsonschema >=2.0', 'jsonref==0.2', 'click'],
       zip_safe=False,
       entry_points = {
         'console_scripts': ['mappyfile=mappyfile.cli:main'],