cmd/bent: refresh versions of all the bent benchmarks

These are all generally now the latest versions.
Problematic benchmarks are disabled in suites.toml.
Removed unnecessary -d flag from go get.
Bumped default module build version up to 1.26.

benchmarks-50 and benchmarks-all have been vetted;
others may be stale.

benchmarks-50 currently runs too many (387) benchmarks,
however fixing that is a problemn for another CL.

Updates #80564.

Change-Id: I4bc60da7ca1ce203ac3d87ec4b45b2487b829846
Reviewed-on: https://go-review.googlesource.com/c/benchmarks/+/806540
Reviewed-by: Junyang Shao <shaojunyang@google.com>
LUCI-TryBot-Result: golang-scoped@luci-project-accounts.iam.gserviceaccount.com <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>