Bump celery from 4.4.4 to 5.2.2 (celery#26)

* Bump celery from 4.4.4 to 5.2.2

Bumps [celery](https://github.com/celery/celery) from 4.4.4 to 5.2.2.
- [Release notes](https://github.com/celery/celery/releases)
- [Changelog](https://github.com/celery/celery/blob/master/Changelog.rst)
- [Commits](celery/celery@v4.4.4...v5.2.2)

---
updated-dependencies:
- dependency-name: celery
  dependency-type: direct:production
...

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

* update relevant deps

* update click

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Asif Saif Uddin <auvipy@gmail.com>

requirements.txt

@@ -1,19 +1,19 @@
 aiohttp==3.7.4
 aiojobs==0.2.2
-amqp==2.6.0
+amqp==5.0.9
 appnope==0.1.0
 async-timeout==3.0.1
 attrs==19.3.0
 backcall==0.1.0
-billiard==3.6.3.0
+billiard==3.6.4.0
 cachetools==4.1.0
-celery==4.4.4
+celery==5.2.3
 certifi==2020.4.5.1
 chardet==3.0.4
-click==7.1.2
+click==8.0.2
 decorator==4.4.2
 Flask==1.1.2
-flower==0.9.4
+flower==1.0.0
 future==0.18.2
 google-auth==1.16.1
 humanize==0.5.1
@@ -25,7 +25,7 @@ iso8601==0.1.12
 itsdangerous==1.1.0
 jedi==0.17.0
 Jinja2==2.11.3
-kombu==4.6.10
+kombu==5.2.3
 kopf==0.27
 kubernetes==11.0.0
 MarkupSafe==1.1.1