ci: update n2st submodule to latest and minor refactor

- Added `.run` configuration file for executing Bats tests with
  `DOCKER_CONTEXT=desktop-linux`
- Modified `tnp::run_n2st_testing_tools` to use `pushd` and `popd`
- Removed DOCKER_CONTEXT environment variable from existing run
  configuration

Author: RedLeader962

.run/run bats tests › 'tests' (all _ DOCKER_CONTEXT=desktop-linux V2).run.xml

@@ -0,0 +1,19 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="run bats tests  › 'tests' (all | DOCKER_CONTEXT=desktop-linux V2)" type="ShConfigurationType" folderName="[TNP] A | bats tests">
+    <option name="SCRIPT_TEXT" value="" />
+    <option name="INDEPENDENT_SCRIPT_PATH" value="true" />
+    <option name="SCRIPT_PATH" value="$PROJECT_DIR$/tests/run_bats_core_test_in_n2st.tnp.bash" />
+    <option name="SCRIPT_OPTIONS" value="tests/tests_bats" />
+    <option name="INDEPENDENT_SCRIPT_WORKING_DIRECTORY" value="true" />
+    <option name="SCRIPT_WORKING_DIRECTORY" value="$PROJECT_DIR$" />
+    <option name="INDEPENDENT_INTERPRETER_PATH" value="true" />
+    <option name="INTERPRETER_PATH" value="/bin/zsh" />
+    <option name="INTERPRETER_OPTIONS" value="" />
+    <option name="EXECUTE_IN_TERMINAL" value="false" />
+    <option name="EXECUTE_SCRIPT_FILE" value="true" />
+    <envs>
+      <env name="DOCKER_CONTEXT" value="desktop-linux" />
+    </envs>
+    <method v="2" />
+  </configuration>
+</component>

.run/runBatsTestsAll.run.xml

@@ -11,9 +11,7 @@
     <option name="INTERPRETER_OPTIONS" value="" />
     <option name="EXECUTE_IN_TERMINAL" value="false" />
     <option name="EXECUTE_SCRIPT_FILE" value="true" />
-    <envs>
-      <env name="DOCKER_CONTEXT" value="desktop-linux" />
-    </envs>
+    <envs />
     <method v="2" />
   </configuration>
 </component>

tests/run_bats_core_test_in_n2st.tnp.bash

@@ -21,8 +21,7 @@ if [[ -z $PARAMS ]]; then
 fi
 
 function tnp::run_n2st_testing_tools(){
-  local TMP_CWD
-  TMP_CWD=$(pwd)
+  pushd "$(pwd)" >/dev/null || exit 1
 
   # ....Project root logic.........................................................................
   TNP_ROOT=$(git rev-parse --show-toplevel)
@@ -55,7 +54,7 @@ export TNP_TEAMCITY_PR_SOURCE
   bash "${N2ST_PATH:?err}/tests/bats_testing_tools/run_bats_tests_in_docker.bash" $PARAMS
 
   # ....Teardown...................................................................................
-  cd "$TMP_CWD"
+  popd >/dev/null || exit 1
   }
 
 tnp::run_n2st_testing_tools