Iter-model

* ⚙️ Internal changes:
* 6fb31e9 🔥Hotfix: fixed links to logo
* volodymyrb <volodymyr.borysiuk0gmail.com>
* 8d03ef9 🔥Hotfix: renamed assets dir to static; fixed link to doc
* volodymyrb <volodymyr.borysiuk0gmail.com>
* b1746cb 🔥Hotfix: fixed py version in deploy-docs.yml
* volodymyrb <volodymyr.borysiuk0gmail.com>
* 50683a3 🔥Hotfix: fixed typo in deploy-docs.yml
* volodymyrb <volodymyr.borysiuk0gmail.com>
* fcccfb0 🔥Hotfix: fixed versions on action in deploy-docs.yml
* volodymyrb <volodymyr.borysiuk0gmail.com>
* 4cb6e94 ⚙️ migrated to new poetry installer
* volodymyrb <volodymyr.borysiuk0gmail.com>
* 3421939 🏷️ new version 1.2.1
* volodymyrb <volodymyr.borysiuk0gmail.com>
* b77f937 📃updated readme
* volodymyrb <volodymyr.borysiuk0gmail.com>
* 660c376 💚 Setup CD for docs
* volodymyrb <volodymyr.borysiuk0gmail.com>
* fca9955 📃mkdocs configs
* volodymyrb <volodymyr.borysiuk0gmail.com>
* 9e0aa05 📃prepared docs for AsyncIter
* volodymyrb <volodymyr.borysiuk0gmail.com>
* b24f557 📃prepared docs for SyncIter
* volodymyrb <volodymyr.borysiuk0gmail.com>

* ✨ New features:
* d39ee71 💊 Added stubs for SyncIter & AsyncIter
* ⚙️ Internal changes:
* 4ebd8d8 📄Updated release template
* volodymyrb <volodymyr.borysiuk0gmail.com>

fd53f91 💚 update CI cache version
* volodymyrb <volodymyr.borysiuk0gmail.com>
* d016164 🐛 [hotfix] Fixed bug in Build workflow
* volodymyrb <volodymyr.borysiuk0gmail.com>
* 9bde1bd 🏷️ new version 1.1.1
* volodymyrb <volodymyr.borysiuk0gmail.com>
* 813e838 🛫 created GitHub actions for CI&CD
* volodymyrb <volodymyr.borysiuk0gmail.com>

* ✨ Added new methods:
* `reduce()`
* `max()`
* `min()`
* `accumulate()`
* `append_left()`
* `append_right()`
* `append_at()`
* `zip()`
* `zip_longest()`
* `slice()`
* 📑 Updated some doc-strings

More methods

What's Changed

* Added mypy to tests
* Added new methods:
* to_tuple()
* to_set()
* skip_while()
* first()
* last()
* chain()
* all()
* any()