chore: add `config_26661.yml` to serve chain without port collisions

[lumtis]

Add config_26661.yml that allows to serve spn locally but with different port exposure, mort importantly rpc on 26661.

This allows to run ignite network commands locally while serving the testnet as well

ignite n chain publish https://github.com/tendermint/spn --spn-node-address http://0.0.0.0:26661/ --spn-faucet-address http://0.0.0.0:4502/ --chain-id spn-1

[codecov[bot]]

Codecov Report

Merging #900 (fcdb8fd) into develop (4b28ffb) will increase coverage by 0.00%. The diff coverage is n/a.

:exclamation: Current head fcdb8fd differs from pull request most recent head 557cd0d. Consider uploading reports for the commit 557cd0d to get more accurate results

@@           Coverage Diff            @@
##           develop     #900   +/-   ##
========================================
  Coverage    10.42%   10.43%           
========================================
  Files          330      330           
  Lines        76837    76837           
========================================
+ Hits          8011     8016    +5     
+ Misses       68635    68632    -3     
+ Partials       191      189    -2     

Impacted Files	Coverage Δ
x/campaign/simulation/store.go	84.45% <0.00%> (+3.37%)	:arrow_up:

[aljo242]

I think the name of this file is unclear. The name should more closely reflect the purpose of the file.

[lumtis]

I think the name of this file is unclear. The name should more closely reflect the purpose of the file.

Maybe just config_2.yml then since the reason for this file is specified in it?