By Caroline Pailliez and Antony Paone PARIS (Reuters) -Railway workers in France went on strike on Wednesday, disrupting travel across the rail network days before the summer holidays begin and at a time of unrest in other areas of the economy as high inflation eats into salaries. With three of the four main unions at the SNCF, France’s state-owned railway operator, taking part in the walkout, nearly a third of intercity and regional train services were cancelled. Commuter trains in and out of Paris were also impacted as well as some TGV high-speed trains. Wednesday’s strike was due to last on…