fix: ensuring aws lambda compatible zip

[russorat]

i was following the instructions here: https://github.com/influxdata/influxdb-client-python/tree/master/docker/aws_lambda_layer#readme

but noticed that the zip file created contained files that start with the /python/ prefix. To be compatible with aws lambda, the packages should be in the root.

previous zip structure:

(base) ➜  kinesisToInfluxDBCloud unzip -vl python.zip | head
Archive:  python.zip
 Length   Method    Size  Cmpr    Date    Time   CRC-32   Name
--------  ------  ------- ---- ---------- ----- --------  ----
       0  Stored        0   0% 08-17-2021 22:25 00000000  python/
       0  Stored        0   0% 08-17-2021 22:25 00000000  python/rx/
       0  Stored        0   0% 08-17-2021 22:25 00000000  python/rx/py.typed
       0  Stored        0   0% 08-17-2021 22:25 00000000  python/rx/core/
    9565  Defl:N     1855  81% 08-17-2021 22:25 c968ac4a  python/rx/core/typing.py
       0  Stored        0   0% 08-17-2021 22:25 00000000  python/rx/core/observer/
       0  Stored        0   0% 08-17-2021 22:25 00000000  python/rx/core/observer/__pycache__/

new zip structure:

(base) ➜  kinesisToInfluxDBCloud unzip -vl python.zip | head
Archive:  python.zip
 Length   Method    Size  Cmpr    Date    Time   CRC-32   Name
--------  ------  ------- ---- ---------- ----- --------  ----
       0  Stored        0   0% 08-17-2021 22:25 00000000  rx/
       0  Stored        0   0% 08-17-2021 22:25 00000000  rx/py.typed
       0  Stored        0   0% 08-17-2021 22:25 00000000  rx/core/
    9565  Defl:N     1855  81% 08-17-2021 22:25 c968ac4a  rx/core/typing.py
       0  Stored        0   0% 08-17-2021 22:25 00000000  rx/core/observer/
       0  Stored        0   0% 08-17-2021 22:25 00000000 rx/core/observer/__pycache__/

Proposed Changes

Briefly describe your proposed changes:

Checklist

• CHANGELOG.md updated
• Rebased/mergeable
• A test has been added if appropriate
• pytest tests completes successfully
• Commit messages are in semantic format
• Sign CLA (if not already signed)

[codecov-commenter]

Codecov Report

Merging #312 (762327b) into master (f455a87) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #312   +/-   ##
=======================================
  Coverage   92.55%   92.55%           
=======================================
  Files          27       27           
  Lines        2204     2204           
=======================================
  Hits         2040     2040           
  Misses        164      164           

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[bednar]

LGTM