[Snyk] Fix for 8 vulnerabilities

[AmeyKamat]

This PR was automatically created by Snyk using the credentials of a real user.

Snyk has created this PR to fix one or more vulnerable packages in the `pip` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • requirements.txt

⚠️ Warning

thinc 6.12.1 requires cymem, which is not installed.
thinc 6.12.1 requires murmurhash, which is not installed.
spacy 2.0.18 requires ujson, which is not installed.
spacy 2.0.18 requires murmurhash, which is not installed.
spacy 2.0.18 requires cymem, which is not installed.
requests 2.21.0 requires certifi, which is not installed.
python-telegram-bot 11.1.0 requires certifi, which is not installed.
preshed 2.0.1 requires cymem, which is not installed.

Vulnerabilities that will be fixed

By pinning:

Severity	Priority Score (*)	Issue	Upgrade	Breaking Change	Exploit Maturity
	554/1000 Why? Has a fix available, CVSS 6.8	Insufficient Verification of Data Authenticity SNYK-PYTHON-CERTIFI-3164749	certifi: 2021.10.8 -> 2022.12.7	No	No Known Exploit
	506/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 3.7	NULL Pointer Dereference SNYK-PYTHON-NUMPY-2321964	numpy: 1.16.6 -> 1.22.2	No	Proof of Concept
	399/1000 Why? Has a fix available, CVSS 3.7	Buffer Overflow SNYK-PYTHON-NUMPY-2321966	numpy: 1.16.6 -> 1.22.2	No	No Known Exploit
	506/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 3.7	Buffer Overflow SNYK-PYTHON-NUMPY-2321969	numpy: 1.16.6 -> 1.22.2	No	Proof of Concept
	506/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 3.7	Denial of Service (DoS) SNYK-PYTHON-NUMPY-2321970	numpy: 1.16.6 -> 1.22.2	No	Proof of Concept
	589/1000 Why? Has a fix available, CVSS 7.5	Out-of-Bounds Write SNYK-PYTHON-UJSON-2359034	ujson: 2.0.3 -> 5.4.0	No	No Known Exploit
	509/1000 Why? Has a fix available, CVSS 5.9	Double Free SNYK-PYTHON-UJSON-2940619	ujson: 2.0.3 -> 5.4.0	No	No Known Exploit
	646/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 6.5	Improper Handling of Syntactically Invalid Structure SNYK-PYTHON-UJSON-2942122	ujson: 2.0.3 -> 5.4.0	No	Proof of Concept

(*) Note that the real score may have changed since the PR was raised.

Some vulnerabilities couldn't be fully fixed and so Snyk will still find them when the project is tested again. This may be because the vulnerability existed within more than one direct dependency, but not all of the affected dependencies could be upgraded.

Check the changes in this PR to ensure they won't cause issues with your project.

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