[fix] glassdoor duplicates

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "python-jobspy"
-version = "1.1.24"
+version = "1.1.25"
 description = "Job scraper for LinkedIn, Indeed, Glassdoor & ZipRecruiter"
 authors = ["Zachary Hampton <zachary@bunsly.com>", "Cullen Watson <cullen@bunsly.com>"]
 homepage = "https://github.com/Bunsly/JobSpy"

src/jobspy/scrapers/glassdoor/__init__.py

@@ -78,6 +78,9 @@ class GlassdoorScraper(Scraper):
             job_url = res_json["data"]["jobListings"]["jobListingSeoLinks"][
                 "linkItems"
             ][i]["url"]
+            if job_url in self.seen_urls:
+                continue
+            self.seen_urls.add(job_url)
             job = job["jobview"]
             title = job["job"]["jobTitleText"]
             company_name = job["header"]["employerNameFromSearch"]