Make bump-version.sh also update the version in documentation sample outputs

[rm3l]

What type of PR is this:

What does this PR do / why we need it:
bump-version.sh is used whenever we are ready to tag a new version. But now that documentation tests are integrated into the CI jobs (#6521), checks for the new version would not pass straight away, and we would need to manually figure out which files would need to be updated.
This happened in the PR for v3.7.0: #6596 (comment)

So this PR is about ensuring the odo version is also updated accordingly in the documentation sample outputs potentially referenced by the Docs tests.

Which issue(s) this PR fixes:
Related to #6192

PR acceptance criteria:

• Unit test

• Integration test

• Documentation

How to test changes / Special notes to the reviewer:
Run the script and make sure it updated the relevant *.mdx files under docs/website/docs/**/docs-mdx/**/.

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[rm3l]

  Expected
      <*url.Error | 0xc0005f22a0>: {
          Op: "Post",
          URL: "http://127.0.0.1:36991/api/newuser",
          Err: <*errors.errorString | 0xc0001120f0>{s: "EOF"},
      }
  to be nil
  In [It] at: /go/odo_1/tests/e2escenarios/e2e_test.go:306

Summarizing 1 Failure:
  [FAIL] E2E Test starting with non-empty Directory add Binding [It] should verify developer workflow of using binding as env in innerloop
  /go/odo_1/tests/e2escenarios/e2e_test.go:306

Ran 7 of 7 Specs in 150.795 seconds
FAIL! -- 6 Passed | 1 Failed | 0 Pending | 0 Skipped

Flaky E2E test - will be addressed in #6582

/override OpenShift-Integration-tests/OpenShift-Integration-tests

[openshift-ci]

@rm3l: Overrode contexts on behalf of rm3l: OpenShift-Integration-tests/OpenShift-Integration-tests

In response to this:

 Expected
     <*url.Error | 0xc0005f22a0>: {
         Op: "Post",
         URL: "http://127.0.0.1:36991/api/newuser",
         Err: <*errors.errorString | 0xc0001120f0>{s: "EOF"},
     }
 to be nil
 In [It] at: /go/odo_1/tests/e2escenarios/e2e_test.go:306

Summarizing 1 Failure:
 [FAIL] E2E Test starting with non-empty Directory add Binding [It] should verify developer workflow of using binding as env in innerloop
 /go/odo_1/tests/e2escenarios/e2e_test.go:306

Ran 7 of 7 Specs in 150.795 seconds
FAIL! -- 6 Passed | 1 Failed | 0 Pending | 0 Skipped

Flaky E2E test - will be addressed in #6582

/override OpenShift-Integration-tests/OpenShift-Integration-tests

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