ci: add coverage and ruff (#1383)

* add coverage calculation and push

Signed-off-by: Michele Dolfi <dol@zurich.ibm.com>

* new codecov version and usage of token

Signed-off-by: Michele Dolfi <dol@zurich.ibm.com>

* enable ruff formatter instead of black and isort

Signed-off-by: Michele Dolfi <dol@zurich.ibm.com>

* apply ruff lint fixes

Signed-off-by: Michele Dolfi <dol@zurich.ibm.com>

* apply ruff unsafe fixes

Signed-off-by: Michele Dolfi <dol@zurich.ibm.com>

* add removed imports

Signed-off-by: Michele Dolfi <dol@zurich.ibm.com>

* runs 1 on linter issues

Signed-off-by: Michele Dolfi <dol@zurich.ibm.com>

* finalize linter fixes

Signed-off-by: Michele Dolfi <dol@zurich.ibm.com>

* Update pyproject.toml

Co-authored-by: Cesar Berrospi Ramis <75900930+ceberam@users.noreply.github.com>
Signed-off-by: Michele Dolfi <97102151+dolfim-ibm@users.noreply.github.com>

---------

Signed-off-by: Michele Dolfi <dol@zurich.ibm.com>
Signed-off-by: Michele Dolfi <97102151+dolfim-ibm@users.noreply.github.com>
Co-authored-by: Cesar Berrospi Ramis <75900930+ceberam@users.noreply.github.com>

docs/examples/backend_xml_rag.ipynb

@@ -383,7 +383,7 @@
     "\n",
     "print(f\"Downloading {url}...\")\n",
     "buf = BytesIO(requests.get(url).content)\n",
-    "print(f\"Parsing zip file, splitting into XML sections, and exporting to files...\")\n",
+    "print(\"Parsing zip file, splitting into XML sections, and exporting to files...\")\n",
     "with zipfile.ZipFile(buf) as zf:\n",
     "    res = zf.testzip()\n",
     "    if res:\n",
@@ -544,7 +544,7 @@
    "source": [
     "doc = backend.convert()\n",
     "\n",
-    "claims_sec = [item for item in doc.texts if item.text == \"CLAIMS\"][0]\n",
+    "claims_sec = next(item for item in doc.texts if item.text == \"CLAIMS\")\n",
     "print(f'Patent \"{doc.texts[0].text}\" has {len(claims_sec.children)} claims')"
    ]
   },