various small BaseServiceV2 improvements

docs: update contributing.md for exit code 137

Error message when this happens can be unhelpful sometimes

feat: add teleportr API server

Set the message-relayer package to private

Improves the log lines within BaseServiceV2 when the service is being
shut down. Follows the pattern already laid out in the main() function
which will log when key events happen.

Fixes the snake case function for metric names to properly account for
strings which include "L1" or "L2". Normally these would be split into
"L_1" and "L_2" respectively, but we want to join these since they're
quite common and "L_1" looks silly.

These will be used to facilitate HTTP requests to the API server.

This will ensure performance on queries for a specific deposit by
txn_hash/address does not degrade as the table grows.

maint: clear dependency warnings

chore: change service generated env variables

Clears out most of the dependency warnings (mainly unmet peer dependency
warnings) by adding or updating various dependencies. Still seeing two
warnings that can only be fixed by updating to the latest hardhat. See
discussion in #2260 for more context about our attempts to upgrade to
the latest version of hardhat.

Version Packages

Develop -> Master

indexer: add pagination metadata for deposit, withdrawal endpoints

proxyd: Don't hit Redis when the out of service interval is zero

ops: Fix gas oracle in docker compose

When the out of service interval is zero, `proxyd` will send a `SETEX` command to Redis with a zero expiry. This is technically an error, and causes messages like `error setting backend unavailable ERR invalid expire time in setex` to appear in the logs. Users won't notice the issue since `proxyd` can continue working when Redis returns an error, but we should clean this up nonetheless since these problems appear in our alerting.

Delete unused variables

feat: extract gas limit estimation to driver, add 20% buffer

feat: add MIN_L1_TX_SIZE configuration

feat(cmn): gracefully handle BaseServiceV2 exits

Create "barrel" index file for hardhat tasks 

Gracefully handles BaseServiceV2 exits by default. Adds a new function
for stopping the service and catches SIGTERM and SIGINT correctly.

feat(rhc): refactor service using BaseServiceV2

On mainnet we are seeing out of exceptions with some frequency. In all
of these cases it appears we are very, very close to being successful.
This commit extracts the internal calls performed by RawTransact into
the driver and then adds a buffer to limit the possibility of losing
money on the reverting transactions, since these very large transactions
are costly especially in the current fee market.

Refactors the replica-healthcheck service using the BaseServiceV2 base
class. Significantly reduces the complexity of the service overall (the
whole service now fits within < 200 loc). Updates the README to reflect
these changes and removes many now-unused dependencies.

create an index.ts file in the tasks folder which re-exports each of the tasks
Also, change all of the tasks imports in hardhat.config.ts to './tasks'