DEVPROD-19870: Cut instance sizes to half where possible (#345)

# Summary
Ticket: [DEVPROD-19870](https://jira.mongodb.org/browse/DEVPROD-19870)
This PR is for cutting instance sizes in half for variants that are
underutilizing resources. This should result in an ~ 34k savings in a
year.

## Proof of Work

The tests are passing
[here](https://spruce.mongodb.com/version/689d2dc3da736000071c33c9/tasks?sorts=STATUS%3AASC%3BBASE_STATUS%3ADESC)
for the variants whose instance types were changed from ubuntu2204-large
to ubuntu2204-medium. The failing tasks are failing in the base commit
as well, so i'm not really sure if it is related.

Variants downsized + the passing tests:
-
[e2e_mdb_kind_ubi_cloudqa](https://spruce.mongodb.com/version/689d2dc3da736000071c33c9/tasks?page=0&sorts=STATUS%3AASC%3BBASE_STATUS%3ADESC&variant=e2e_mdb_kind_ubi_cloudqa)

-
[e2e_static_mdb_kind_ubi_cloudqa](https://spruce.mongodb.com/version/689d2dc3da736000071c33c9/tasks?page=0&sorts=STATUS%3AASC%3BBASE_STATUS%3ADESC&variant=e2e_static_mdb_kind_ubi_cloudqa)

-
[e2e_static_om70_kind_ubi](https://spruce.mongodb.com/version/689d2dc3da736000071c33c9/tasks?page=0&sorts=STATUS%3AASC%3BBASE_STATUS%3ADESC&variant=e2e_static_om70_kind_ubi)

-
[e2e_static_om80_kind_ubi](https://spruce.mongodb.com/version/689d2dc3da736000071c33c9/tasks?page=0&sorts=STATUS%3AASC%3BBASE_STATUS%3ADESC&variant=e2e_static_om80_kind_ubi)

The tasks are 5% slower compared to the [base
commit](https://spruce.mongodb.com/version/mongodb_kubernetes_f0df6f42547f5602c5c4ab120d1d7e3d0db05797/tasks?sorts=STATUS%3AASC%3BBASE_STATUS%3ADESC)
which has a total time taken of 7d 14h 52m 49s. Whereas
[this](https://spruce.mongodb.com/version/689e05fdaaad8c0007845ce7/tasks?sorts=STATUS%3AASC%3BBASE_STATUS%3ADESC)
patch took 8d 0h 59m 48s. However there are some failing and
undispatched tasks in the base commit. Comparing to the [patch in a
recent
PR](https://spruce.mongodb.com/version/689df5cd9e58b7000756a3c3/tasks?sorts=STATUS%3AASC%3BBASE_STATUS%3ADESC)
that has all tasks passing, it is only 0.7% slower (the patch took 7d
23h 35m 46s)

## Checklist

- [x] Have you linked a jira ticket and/or is the ticket in the title?
- [ ] Have you checked whether your jira ticket required DOCSP changes?
- [ ] Have you added changelog file?
    - use `skip-changelog` label if not needed
- refer to [Changelog files and Release
Notes](https://github.com/mongodb/mongodb-kubernetes/blob/master/CONTRIBUTING.md#changelog-files-and-release-notes)
section in CONTRIBUTING.md for more details
(I'm unable to add a `skip-changelog` label since i don't have write
access. Would the reviewer be able to add it?)

Co-authored-by: Anand <[email protected]>

Author: anjani-bhat

.evergreen.yml

@@ -1250,7 +1250,7 @@ buildvariants:
     display_name: e2e_mdb_kind_ubi_cloudqa
     tags: [ "e2e_test_suite", "cloudqa" ]
     run_on:
-      - ubuntu2204-large
+      - ubuntu2204-medium
     <<: *base_no_om_image_dependency
     tasks:
       - name: e2e_mdb_kind_cloudqa_task_group
@@ -1268,7 +1268,7 @@ buildvariants:
     display_name: e2e_static_mdb_kind_ubi_cloudqa
     tags: [ "e2e_test_suite", "cloudqa" ]
     run_on:
-      - ubuntu2204-large
+      - ubuntu2204-medium
     <<: *base_no_om_image_dependency
     tasks:
       - name: e2e_mdb_kind_cloudqa_task_group
@@ -1370,7 +1370,7 @@ buildvariants:
     display_name: e2e_static_om70_kind_ubi
     tags: [ "e2e_test_suite" ]
     run_on:
-      - ubuntu2204-large
+      - ubuntu2204-medium
     <<: *base_om7_dependency
     tasks:
       - name: e2e_static_ops_manager_kind_only_task_group
@@ -1393,7 +1393,7 @@ buildvariants:
     display_name: e2e_static_om80_kind_ubi
     tags: [ "e2e_test_suite" ]
     run_on:
-      - ubuntu2204-large
+      - ubuntu2204-medium
     <<: *base_om8_dependency
     tasks:
       - name: e2e_static_ops_manager_kind_only_task_group