Rename GitlabRPS to GitlabMaxRPS

This makes the variable a bit clearer since we're only setting
the maximum not the actual rate. With low numbers this does
not matter much but with higher ones it can be confusing why
you're not getting the configured throughput.

internal/crawler/crawler.go

@@ -30,7 +30,7 @@ type Crawler struct {
 type Config struct {
 	GitlabHost    string `conf:"required,short:g,env:GITLAB_HOST"`
 	GitlabToken   string `conf:"required,short:t,env:GITLAB_TOKEN"`
-	GitlabRPS     int    `conf:"default:1,short:r,env:GITLAB_RPS"`
+	GitlabMaxRPS  int    `conf:"default:1,short:r,env:GITLAB_MAX_RPS"`
 	Neo4jHost     string `conf:"default:bolt://127.0.0.1:7687,flag:neo4j-host,short:n,env:NEO4J_HOST"`
 	Neo4jUsername string `conf:"default:neo4j,flag:neo4j-username,short:u,env:NEO4J_USERNAME"`
 	Neo4jPassword string `conf:"required,flag:neo4j-password,short:w,env:NEO4J_PASSWORD"`
@@ -44,7 +44,7 @@ func New(cfg Config) (*Crawler, error) {
 		Client: &http.Client{
 			Timeout: 5 * time.Second,
 		},
-		RateLimiter: rate.NewLimiter(rate.Limit(cfg.GitlabRPS), cfg.GitlabRPS),
+		RateLimiter: rate.NewLimiter(rate.Limit(cfg.GitlabMaxRPS), cfg.GitlabMaxRPS),
 	}
 
 	gitlabClient := gitlab.NewClient(cfg.GitlabHost, cfg.GitlabToken, httpClient)