[fix] stabilize the ODS-1864 test by scrolling button into view

This stabilizes the `Verify User Can Create A Workbench With Environment
Variables` test - it usually pass just fine locally, but fails on
Jenkins since the button isn't clickable as it's not in the view of the
browser.

This tries to move the button into the center of the view.

Also, unnecessary version check removed.

ods_ci/tests/Resources/Page/ODH/ODHDashboard/ODHDataScienceProject/Workbenches.resource

@@ -111,12 +111,6 @@ Create Workbench
 Add Environment Variables In Workbench
     [Documentation]    Adds the environment variables through the workbench creation page
     [Arguments]    ${env_variables}
-    ${version_check}=  Is RHODS Version Greater Or Equal Than  1.20.0
-    IF  ${version_check}==True
-        ${add_key_value_text}=    Set Variable    Add another key / value pair
-    ELSE
-        ${add_key_value_text}=    Set Variable    Add another variable
-    END
     # Use the `Jump to section` links in the page to scroll the section into view
     Click Element    //a[@href="#environment-variables"]
     Click Element    ${WORKBENCH_ADD_VAR_BTN_XP}
@@ -137,14 +131,12 @@ Add Environment Variables In Workbench
                 Input Text    ${ENV_VARIABLES_SECTION_XP}/div[contains(@class, "-l-split")][${idx}]//input[@aria-label="value of item ${pair_idx}"]
                 ...           ${value}
                 IF    ${n_pairs}-${pair_idx} > 1
-                    Click Element    ${ENV_VARIABLES_SECTION_XP}/div[contains(@class, "-l-split")][${idx}]//button[text()="${add_key_value_text}"]
-                    # The element we want to click might get pushed out of view on every loop, let's scroll by an approx
-                    # amount of pixels for the block of elements that gets added.
-                    IF    "${add_key_value_text}" == "Add another key / value pair"
-                        Execute Javascript    document.getElementsByClassName("pf-v5-c-drawer__content")[1].scrollBy(0,500)  # robocop: disable
-                    ELSE IF    "${add_key_value_text}" == "Add another variable"
-                        Execute Javascript    document.getElementsByClassName("pf-v5-c-drawer__content")[1].scrollBy(0,700)  # robocop: disable
-                    END
+                    ${another_key_button_xpath}=    Set Variable
+                    ...    //section[@aria-label="Environment variables"]/div[contains(@class, "-l-split")][${idx}]//button[@data-testid="another-key-value-pair-button"]  # robocop: disable:line-too-long
+                    # Assure that the button we want to click is in the view
+                    Execute Javascript
+                    ...    document.evaluate('${another_key_button_xpath}', document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue.scrollIntoView()  # robocop: disable:line-too-long
+                    Click Element    xpath=${another_key_button_xpath}
                 END
             END
         ELSE IF  "${input_type}" == "${UPLOAD_TYPE}"