Just an update to let everyone know the problem was fixed.
Eventually I gave up trying to install the pepper-flash package, and instead installed google-chrome which comes with the latest flash player. Low and behold, I then tried to install the pepper-flash player for chromium and it installed without any problems. The reason being, by installing google-chrome all the dependancies for pepper-flash were already installed by google-chrome and hence there were no dependancies require for pepper-flash the second time round.
One other thing worth noting, pepper-flash is only accessable by chromium and not other browsers like Iceweasel.
Apple MacBook Pro Apple M1 Pro 8-Core CPU 16GB RAM 512GB SSD 14" 2021 Good
$1198.97
Apple MacBook Pro Apple M1 Pro 8-Core CPU 16GB RAM 512GB SSD 14" (2021) Good
$1198.97
SRF8Z Intel Xeon Gold 6244 8-Core 3.60GHz 24.75MB 150W Processor ***New Other***
$1479.00
Dell PowerEdge R630 Server 3.50Ghz 8-Core 192GB 10x NEW 2TB SSD H730P Rails
$2877.90
Lenovo ThinkCentre M920Q Tiny Core i7 8th Gen 4.0GHz 16GB 512GB Windows 11 WiFi.
$150.00
Intel Xeon E5-2667 V2 LGA 2011 3.3GHz 8 Core 130W 25MB 8GT/s CPU Processor
$24.00
Intel Core i7-13700KF - 13th Gen Raptor Lake 16-Core (8P+8E) Desktop CPU
$295.99
Dell Precision T5600 8-Core 16-Thread 2.70GHz E5-2680 128GB RAM 1TB SSD
$150.00
Dell 9020 Optiplex Micro-Intel Core i5 - 1TB SSD 8GB RAM Window 11
$119.49
HP Workstation Z640 2x Xeon E5-2623V4 32GB Ram Dual 256GB SSD K420 Linux GA
$234.98