Add Oracle Cloud CLI to pulumi/pulumi image

[justinvp]

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Issue details

Add the Oracle Cloud CLI to the pulumi/pulumi image. This was originally added in #182 (shipped in v3.116.0 and v3.116.1), but was reverted due to #193 in #195.

We were using the installer to install the oci binary to /usr/bin, but the installer was modifying /root/.bashrc to update PATH to have /usr/bin ahead of /usr/local/bin, which was causing errors when running Python pulumi programs with Pulumi Deployments.

A potential simple fix is to place the binary in /usr/local/bin rather than /usr/bin, but I'd like to see if we can avoid modifying /root/.bashrc. Doesn't look like there's an easy way to do that using the installation script. It may be best to install it manually via pip install oci-cliin a virtual environment, and copying the binary to/usr/local/bin` without using their installation script, so it doesn't try to install python or modify anything else in the image.