is there a special way to lubricate foot pedals

Can't help with the difficulty of disassembling the pedal assy, but just wanted to mention that things like the clevis pin on the clutch cable end and even the hooked end of a return spring can "squeak" during motion -- so would lube those as well before resorting to complete disassembly (and would consider using a thinner spray type lubricant, applied with the spray tube, to all of the joints along the pedal assy in the hope you could get some internal migration) - JMO.

 

Get some Wurth HHH2000, HHSK or the newer HHS Plus, and spray all of the pivot points, clevis and spring ends. I have found this lubricant to be the best penetrating grease available. It sprays out as a thin penetrating liquid, then the carrier evaporates off and it thickens to a very good grease. Great for door hinge pins, clutch and brake pedal linkages, hood and trunk hinges and latches. I use it with a motorcycle cable lube clamp for cables. If you can get this lube into the space it will work.
It comes with a small straw for application, but I use some small hose (the 1.5mm windshield washer hose) over the straw and then stick another straw in the hose. With this setup you can direct the spray into areas that are hard to access.

 

While not the clutch pedal, while you are down there, now would be a good time to lubricate the roller bearings in the accelerator pedal.

Bet that you had not realized that this was how these are made!

Two pictures before cleaning; one after.

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If you have a rhd 308 qv, my clutch pedal squeaked at the linkage rod bearings that runs across the car #11 in diagram shown.