v1.17: [anza migration]: add 'agave=info' to default log level (backport of #223)

[mergify]

Problem

agave-validator's log doesn't print to file due to I don't set a proper default log level for it.

Summary of Changes

use solana=info,agave=info as our default log level filter.

---

cc @willhickey

---

This is an automatic backport of pull request #223 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 51dc7e6 has failed:

On branch mergify/bp/v1.17/pr-223
Your branch is up to date with 'origin/v1.17'.

You are currently cherry-picking commit 51dc7e6fb7.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   bench-tps/src/main.rs
	modified:   dos/src/main.rs
	modified:   faucet/src/bin/faucet.rs
	modified:   gossip/src/main.rs
	modified:   ledger-tool/src/main.rs
	modified:   logger/src/lib.rs
	modified:   runtime/store-tool/src/main.rs
	modified:   scripts/run.sh
	modified:   transaction-dos/src/main.rs
	modified:   validator/src/lib.rs
	modified:   watchtower/src/main.rs

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	deleted by us:   cargo-registry/src/main.rs

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[yihau]

would like to include #245 with this backport

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 5 lines in your changes are missing coverage. Please review.

Project coverage is 81.6%. Comparing base (3809dc0) to head (bfccb11).

Additional details and impacted files

@@            Coverage Diff            @@
##            v1.17     #242     +/-   ##
=========================================
- Coverage    81.6%    81.6%   -0.1%     
=========================================
  Files         806      806             
  Lines      219203   219205      +2     
=========================================
- Hits       178978   178945     -33     
- Misses      40225    40260     +35     

[yihau]

will have #245 in a separated PR