chore: ignore backcompat in renovate

[dyladan]

Yet another crack at updating renovate so it will not do #2236

This version comes from a suggestion from the folks at renovate so it should work.

[codecov]

Codecov Report

Merging #2350 (98c34fd) into main (f9ab4a3) will increase coverage by 0.11%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #2350      +/-   ##
==========================================
+ Coverage   92.65%   92.77%   +0.11%     
==========================================
  Files         142      145       +3     
  Lines        5091     5216     +125     
  Branches     1047     1068      +21     
==========================================
+ Hits         4717     4839     +122     
- Misses        374      377       +3     

Impacted Files	Coverage Δ
...emetry-core/src/platform/node/RandomIdGenerator.ts	87.50% <0.00%> (-6.25%)	⬇️
...ontext-async-hooks/src/AsyncHooksContextManager.ts	100.00% <0.00%> (ø)
...sync-hooks/src/AbstractAsyncHooksContextManager.ts	97.01% <0.00%> (ø)
...async-hooks/src/AsyncLocalStorageContextManager.ts	100.00% <0.00%> (ø)

[dyladan]

Stupid CLA check