Bump trafaret from 2.0.0 to 2.0.2 in /packages/service-library

Bumps [trafaret](https://github.com/Deepwalker/trafaret) from 2.0.0 to 2.0.2.
- [Release notes](https://github.com/Deepwalker/trafaret/releases)
- [Changelog](https://github.com/Deepwalker/trafaret/blob/master/docs/changelog.rst)
- [Commits](https://github.com/Deepwalker/trafaret/commits/v2.0.2)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

packages/service-library/requirements/_base.txt

@@ -25,7 +25,7 @@ six==1.12.0               # via isodate, jsonschema, openapi-core, openapi-spec-
 sqlalchemy[postgresql_psycopg2binary]==1.3.4  # via -r requirements/_base.in (line 5), aiopg
 strict-rfc3339==0.7       # via openapi-core
 tenacity==6.1.0           # via -r requirements/_base.in (line 18)
-trafaret==2.0.0           # via -r requirements/_base.in (line 20)
+trafaret==2.0.2           # via -r requirements/_base.in (line 20)
 ujson==1.35               # via -r requirements/_base.in (line 13)
 werkzeug==0.15.4          # via -r requirements/_base.in (line 14)
 yarl==1.3.0               # via aiohttp

packages/service-library/requirements/_test.txt

@@ -48,7 +48,7 @@ sqlalchemy[postgresql_psycopg2binary]==1.3.4  # via -r requirements/_base.txt (l
 strict-rfc3339==0.7       # via -r requirements/_base.txt (line 26), openapi-core
 tenacity==6.1.0           # via -r requirements/_base.txt (line 27)
 termcolor==1.1.0          # via pytest-sugar
-trafaret==2.0.0           # via -r requirements/_base.txt (line 28)
+trafaret==2.0.2           # via -r requirements/_base.txt (line 28)
 ujson==1.35               # via -r requirements/_base.txt (line 29)
 urllib3==1.25.7           # via requests
 wcwidth==0.1.8            # via pytest