chore: fix renovate config

[dyladan]

It looks like a bad git merge or rebase messed up the renovate config :/

Also update to the latest config syntax

➜  opentelemetry-js git:(fix-renovate) renovate-config-validator                         
 INFO: Validating renovate.json
 INFO: Config validated successfully

[codecov]

Codecov Report

Merging #1985 (5aeface) into main (2f169a5) will decrease coverage by 0.25%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1985      +/-   ##
==========================================
- Coverage   92.91%   92.65%   -0.26%     
==========================================
  Files         152      152              
  Lines        5924     5923       -1     
  Branches     1245     1245              
==========================================
- Hits         5504     5488      -16     
- Misses        420      435      +15     

Impacted Files	Coverage Δ
...async-hooks/src/AsyncLocalStorageContextManager.ts	23.52% <0.00%> (-76.48%)	⬇️
...kages/opentelemetry-node/src/NodeTracerProvider.ts	94.11% <0.00%> (-5.89%)	⬇️
...sync-hooks/src/AbstractAsyncHooksContextManager.ts	95.31% <0.00%> (-1.57%)	⬇️
packages/opentelemetry-sdk-node/src/sdk.ts	76.47% <0.00%> (-0.35%)	⬇️