Upgrading new master install?

[StormTrooper]

I've had inventree running for a few years and now decided to install/migrate it to a new server as the old server is becoming flaky.

After a few days of tinkering around I've managed to get a bare metal install working using the install.sh script and using a local MySQL database. I installed the master version to match my old server so I can migrated.

This is now all working but before I cut over to the new server I want to make sure upgrades are running. This is where the problem comes in.

On the docs it says to upgrade run
git pull origin master

The problem is I can't find the folder where the install.sh cloned the repo.
If I run the above command in the /opt/inventree or /opt/inventree/src folder (logged in as inventree user) I get

fatal: not a git repository (or any of the parent directories): .git

This is the folder structure for /opt/inventree:

inventree@inventree-test:/opt/inventree$ ls -la
total 176
drwxr-xr-x 14 inventree inventree  4096 Apr 16 08:51 .
drwxr-xr-x  3 root      root       4096 Apr 16 08:49 ..
drwxr-xr-x  3 inventree inventree  4096 Apr 16 08:49 assets
-rw-rw-r--  1 inventree inventree   249 Apr 16 05:17 branches.json
-rw-r--r--  1 inventree inventree   504 Apr 16 05:17 codecov.yml
-rw-rw-r--  1 inventree inventree  6813 Apr 16 05:17 commit.json
drwxr-xr-x  6 inventree inventree  4096 Apr 16 08:49 contrib
-rw-r--r--  1 inventree inventree  3379 Apr 16 05:17 CONTRIBUTING.md
-rw-r--r--  1 inventree inventree   417 Apr 16 05:17 crowdin.yml
drwxrwxr-x  5 inventree inventree  4096 Apr 16 08:51 data
drwxr-xr-x  2 inventree inventree  4096 Apr 16 08:49 .devcontainer
drwxr-xr-x  2 inventree inventree  4096 Apr 16 08:49 .devops
drwxr-xr-x  5 inventree inventree  4096 Apr 16 08:49 docs
drwxrwxr-x  6 inventree inventree  4096 Apr 16 08:49 env
drwxrwxr-x  4 inventree inventree  4096 Apr 16 08:49 .heroku
-rw-r--r--  1 inventree inventree  1071 Apr 16 05:17 LICENSE
lrwxrwxrwx  1 inventree inventree    18 Apr 16 08:49 log -> /var/log/inventree
-rw-r--r--  1 inventree inventree  1191 Apr 16 05:17 .pkgr.yml
-rw-r--r--  1 inventree inventree  2528 Apr 16 05:17 .pre-commit-config.yaml
-rw-r--r--  1 inventree inventree   426 Apr 16 05:17 Procfile
drwxrwxr-x  2 inventree inventree  4096 Apr 16 08:49 .profile.d
-rw-r--r--  1 inventree inventree  1679 Apr 16 05:17 pyproject.toml
-rw-r--r--  1 inventree inventree 10057 Apr 16 05:17 README.md
-rw-r--r--  1 inventree inventree   462 Apr 16 05:17 readthedocs.yml
-rw-rw-r--  1 inventree inventree    18 Apr 16 05:17 .release
-rw-r--r--  1 inventree inventree   620 Apr 16 05:17 RELEASE.md
-rw-r--r--  1 inventree inventree   135 Apr 16 05:17 requirements.txt
-rw-r--r--  1 inventree inventree    13 Apr 16 05:17 runtime.txt
-rw-r--r--  1 inventree inventree   790 Apr 16 05:17 SECURITY.md
drwxr-xr-x  4 inventree inventree  4096 Apr 16 08:49 src
-rw-r--r--  1 inventree inventree 36743 Apr 16 05:17 tasks.py
drwxrwxr-x  3 inventree inventree  4096 Apr 16 08:49 vendor
-rw-rw-r--  1 inventree inventree  1100 Apr 16 05:17 VERSION
drwxr-xr-x  2 inventree inventree  4096 Apr 16 08:49 .vscode

And /opt/inventree/src

inventree@inventree-test:/opt/inventree/src$ ls -la
total 16
drwxr-xr-x  4 inventree inventree 4096 Apr 16 08:49 .
drwxr-xr-x 14 inventree inventree 4096 Apr 16 08:51 ..
drwxr-xr-x  3 inventree inventree 4096 Apr 16 08:49 backend
drwxr-xr-x  5 inventree inventree 4096 Apr 16 08:49 frontend

Even more strange is if I list the inventree package it shows as:
ii inventree 0.13.0-1713244636.b3f6c8f5.focal amd64 Open Source Inventory Management System

However I'm running:

# Version Information:
InvenTree-Version: 0.15.0 dev
Django Version: 4.2.11



Database: mysql
Debug-Mode: False
Deployed using Docker: False
Platform: Linux-5.4.0-176-generic-x86_64-with-glibc2.31
Installer: None

Active plugins: [{'name': 'InvenTreeBarcode', 'slug': 'inventreebarcode', 'version': '2.0.0'}, {'name': 'InvenTreeCoreNotificationsPlugin', 'slug': 'inventreecorenotificationsplugin', 'version': '1.0.0'}, {'name': 'InvenTreeCurrencyExchange', 'slug': 'inventreecurrencyexchange', 'version': '1.0.0'}, {'name': 'InvenTreeLabel', 'slug': 'inventreelabel', 'version': '1.0.0'}, {'name': 'InvenTreeLabelMachine', 'slug': 'inventreelabelmachine', 'version': '1.0.0'}, {'name': 'InvenTreeLabelSheet', 'slug': 'inventreelabelsheet', 'version': '1.0.0'}, {'name': 'DigiKeyPlugin', 'slug': 'digikeyplugin', 'version': '1.0.0'}, {'name': 'LCSCPlugin', 'slug': 'lcscplugin', 'version': '1.0.0'}, {'name': 'MouserPlugin', 'slug': 'mouserplugin', 'version': '1.0.0'}, {'name': 'TMEPlugin', 'slug': 'tmeplugin', 'version': '1.0.0'}]

What am I missing?