Add default version of software installed to the $PATH

[bschwedler]

Given that we are installing a specific version of software like Python and R, we should expect that these executables be available in users' PATH by default.

Relates to:

• Evaluate adding R/Py to $PATH in Connect Content images #821
• Proposal: Remove R and Python installations from the base product images and use docker ONBUILD instructions #791
• Update all references of packagemanager.posit.co to p3m.dev #857
• Update python versions used in our images #719
• Remove PYTHON_VERSION_JUPYTER and default Jupyter installs to the primary or alternate Python version #614
• Missing pip and python3-venv for default python3 in jammy kubernetes images #560
• Package Manager - unable to find R #523

### Tasks
- [ ] Add default Python executables to `$PATH`
- [ ] Add default R executables to `$PATH`
- [ ] Add default Quarto executables to `$PATH`
- [ ] Examine other software that we install that we want to add to the