Fix S7 zenodo file names

[sjspielman]

Never a dull moment!
While starting #1753, I noticed that the S7 Zenodo CSVs don't... entirely match up with the panels they are meant to match up with.

Changes that need to be made:

These files are fine:

• figure-S7a-data.csv
• figure-S7b-data.csv
• figure-S7c-data.csv
• figure-S7d-data.csv
• figure-S7e-data.csv
• figure-S7f-data.csv

These files need name swaps to match their correct panels

Note that associated README and tables/copy-zenodo-tables.sh updates are also needed

• The current file figure-S7g-data.csv contains the data for panel I.
  • Change the output file name to be figure-S7i-data.csv in this script: https://github.com/AlexsLemonade/OpenPBTA-analysis/blob/20fb1c8f20676db70fd2d44bab51f27332e7e9e8/figures/scripts/figS7-tp53-telomerase-tumor-purity-threshold.R
• The current file figure-S7h-data.csv contains the data for panel G.
  • Change the output file name to be figure-S7g-data.csv in this notebook: https://github.com/AlexsLemonade/OpenPBTA-analysis/blob/20fb1c8f20676db70fd2d44bab51f27332e7e9e8/analyses/transcriptomic-dimension-reduction/06-umap-tumor-purity-threshold.Rmd
• The current file figure-S7i-data.csv contains the data for panel H.
  • Change the output file name to be figure-S7h-data.csv in this notebook: https://github.com/AlexsLemonade/OpenPBTA-analysis/blob/20fb1c8f20676db70fd2d44bab51f27332e7e9e8/analyses/immune-deconv/03-quantiseq-at-threshold.Rmd