requirements: update pandas requirement from <1.5.4 to <2.0.1

Updates the requirements on [pandas](https://github.com/pandas-dev/pandas) to permit the latest version.
- [Release notes](https://github.com/pandas-dev/pandas/releases)
- [Changelog](https://github.com/pandas-dev/pandas/blob/main/RELEASE.md)
- [Commits](pandas-dev/pandas@0.3.0...v2.0.0)

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

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

requirements.txt

@@ -17,5 +17,5 @@ torch>=1.8.0, <1.14.0; (platform_machine == 'AMD64' or platform_machine == 'x86_
 typecheck-decorator<=1.2
 leabra-psyneulink<=0.3.2
 rich>=10.1, <10.13
-pandas<1.5.4
+pandas<2.0.1
 fastkde>=1.0.19, <1.0.21