Failure to activate conda env results in failure to detect if ipykernel is installed

[DonJayamanne]

Initially reported by Rong.
Basically activation of conda environments fails, hence we cannot launch conda properly.

[DonJayamanne]

Jim too is running into this.
Summary:

• The process to get env variables seems to be timing out, and the process is terminated hence the SIGTERM error
• When using conda run we run into the exact same issue
• Jim has a conda env that takes 10s to activate in the conda terminal

[DonJayamanne]

Todo:

• Add telemetry to see how often this fails for conda users (if failed, then nothing will work)
• Increase the timeout for conda environments (or retry with a higher timeout?)
• Possible solutions here Perf improvements for starting kernels (perf resulting from checking packages & dependencies) #6694

[DonJayamanne]

Timeout increased in Python extesnion

[rchiodo]

@greazer can you verify this works?