ci: Remove installs of packages already available (#27123)

We're installing quite a few pieces of software, although they're
already availble in the CI environments. See
https://github.com/actions/runner-images/blob/main/images/linux/Ubuntu2204-Readme.md.

This has led to one failure where it failed to download Helm (because of
a sporadiv 403), where `helm` was already installed and this step wasn't
even needed.

This PR does this:

1. Print the versions of the tools we need.
2. Install MongoSH v6.
3. Install Kubectl pinned to v1.23, since the one that comes by default
is 1.28, which is too new.

References:

[As seen in this
run](https://github.com/appsmithorg/appsmith/actions/runs/6121523768/job/16617184408).
<img width="562" alt="shot-2023-09-09-00-53-35@2x"
src="https://github.com/appsmithorg/appsmith/assets/120119/cfe95a40-28cd-4a13-8071-58438e94ba69">

[MongoDB v6
installation](https://www.mongodb.com/docs/v6.0/tutorial/install-mongodb-on-ubuntu/#install-mongodb-community-edition).

.github/workflows/on-demand-build-docker-image-deploy-preview.yml

@@ -207,23 +207,31 @@ jobs:
           ref: "refs/pull/${{ github.event.client_payload.pull_request.number }}/merge"
           fetch-depth: 0
 
+      - name: Print versions of tools
+        run: |
+          set -o errexit
+          set -o xtrace
+          aws --version || true
+          kubectl version || true
+          helm version || true
+
       - name: Install mongosh
         run: |
+          curl -fsSL https://pgp.mongodb.com/server-6.0.asc \
+            | sudo gpg -o /usr/share/keyrings/mongodb-server-6.0.gpg --dearmor
+          echo "deb [ arch=amd64,arm64 signed-by=/usr/share/keyrings/mongodb-server-6.0.gpg ] https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/6.0 multiverse" \
+            | sudo tee /etc/apt/sources.list.d/mongodb-org-6.0.list
           sudo apt-get update
-          sudo apt-get install -y wget gnupg
+          sudo apt-get install --yes mongodb-mongosh
-          wget -qO - https://www.mongodb.org/static/pgp/server-5.0.asc | sudo apt-key add -
+          echo "MongoSH version: $(mongosh --version)"
-          echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/5.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-6.0.list
-          sudo apt-get update
-          sudo apt-get install -y mongodb-mongosh
 
       - name: Install relevant packages
         run: |
-          which aws
+          set -o errexit
-          sudo apt update -q && sudo apt install -y curl unzip less jq
+          # We still need Kubectl v1.23. Once we up the cluster version, we can get rid of this step.
-          curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.23.6/bin/linux/amd64/kubectl && \
+          curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.23.6/bin/linux/amd64/kubectl
-          sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl && \
+          sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl
-          curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 && \
+          kubectl version || true
-          chmod 700 get_helm.sh; ./get_helm.sh
 
       - name: Deploy Helm chart
         env: