Consistent Go version in go.mod and go.work files

[bestbeforetoday]

The repository currently uses Go 1.22 to test samples in the automated build. This change sets the Go version in all go.mod (and go.work) files to Go 1.22.0, and removes any Go toolchain entries.

For reference, the following commands were used to perform updates:

for go_mod_dir in $(find "$(pwd)" -type f -name go.mod -exec dirname {} \;); do echo "${go_mod_dir}"; ( cd "${go_mod_dir}" && go get go@1.22.0 toolchain@none ); done

for go_work_dir in $(find "$(pwd)" -type f -name go.work -exec dirname {} \;); do echo "${go_work_dir}"; ( cd "${go_work_dir}" && go work edit -toolchain=none ); done