**Motivation:**

chain_id is currently an github secrets, but not used anywhere

**Modifications:**

remove chain id from secrets and env vars 

**Result:**

one less useless secret, no impact on ci

**Motivation:**

per eigengit, main will be the new canonical branch

**Modifications:**

change push branch from dev to main

**Result:**

ci will be run on PRs against main

…Labs#1279)

**Motivation:**

fork-based pr cannot use secrets or github token

**Modifications:**

disable auto labeler to prepare for enabling fork-based pr

**Result:**

auto labeler is disabled, will be potentially removed in future soon

**Motivation:**

*Explain here the context, and why you're making that change. What is
the problem you're trying to solve.*

**Modifications:**

*Describe the modifications you've done.*

**Result:**

*After your change, what will change.*

**Motivation:**

remove holesky rpc since it's not used anywhere

**Modifications:**

remove holesky rpc

**Result:**

remove holesky rpc

**Motivation:**

make testing of fork based pr easier by splitting workflows require
secrets vs not

**Modifications:**

splitting workflows require secrets vs not into 2 gh workflow files

**Result:**

splitting workflows require secrets vs not into 2 gh workflow files

**Motivation:**

*Explain here the context, and why you're making that change. What is
the problem you're trying to solve.*

**Modifications:**

*Describe the modifications you've done.*

**Result:**

*After your change, what will change.*