bump k6 version to 0.51.0 and go version to 1.21

[kempsterc]

• k6 version to 0.51.0
• go version to 1.21 in CI

[kempsterc]

@LeonAdato would you mind reviewing please?

[LeonAdato]

@kempsterc sorry for the delay. I'm traveling and speaking at events this week and probably won't be able to review until early next week.

[kempsterc]

Ah! Apologies.
At least I know now :). Thank you kindly!
No rush at all.
Just saw an opportunity to help

[javaducky]

@kempsterc appears good to me! Thanks!

Verified using the following steps:

• Checkout branch using gh pr checkout 11
• Build k6 with updated extension using make
• Confirmed k6 version upgrade using ./k6 version
• Start a StatsD target of a Graphite server using the Docker Compose file, docker compose up
• Executed test script with new binary using ./k6 run -o output-statsd examples/ramping-vus.js
• Confirmed in Graphite UI (http://localhost:80/) that updates were coming into the instance
• Confirmed GitHub Actions from CI passed

[kempsterc]

@kempsterc appears good to me! Thanks!

Verified using the following steps:

• Checkout branch using gh pr checkout 11
• Build k6 with updated extension using make
• Confirmed k6 version upgrade using ./k6 version
• Start a StatsD target of a Graphite server using the Docker Compose file, docker compose up
• Executed test script with new binary using ./k6 run -o output-statsd examples/ramping-vus.js
• Confirmed in Graphite UI (http://localhost:80/) that updates were coming into the instance

I followed the steps above, before I pushed

[kempsterc]

@javaducky @LeonAdato can we merge this one please?
many thanks

[nicholaspshaw]

@javaducky @LeonAdato is there a release planned for any time soon?

[kempsterc]

@nicholaspshaw
probably needs
#12
then release

[LeonAdato]

I'm traveling home today but will review and merge tomorrow when I'm back at my desk.

Thank you for the help! ( And patience!)