Bump go version to 1.22

[nabuskey]

To upgrade to k8s 1.30, we need go 1.22
Changes:

• idpbuilder/go.mod

  Line 3 in 1ed5422

  go 1.21.3

• idpbuilder/.github/workflows/e2e.yaml

  Line 17 in 1ed5422

  go-version: '1.21'

• idpbuilder/.github/workflows/pr.yaml

  Line 15 in 1ed5422

  go-version: '1.21'

• idpbuilder/.github/workflows/release.yaml

  Line 20 in 1ed5422

  go-version: '1.21.0'

Wonder if we we should store them in repo variables.

[AryanSharma9917]

@nabuskey, could you assign this issue to me if no one is working on it? I would like to contribute to it!

[nabuskey]

Assigned. Thank you and let me know if you have any questions!