Use \dontrun instead of \donttest for non-essential examples

This is not so nice for the user experience because of the
wrappers arround examples:

 ## Not run
 ...
 ## End(Not run)

but it is necessary to some extent to pass automatic CRAN
checks under all circumstances, which actually do run
the donttest examples since R 4.0 with a time limit of apparently
20min in total.

Change-Id: If09b1aa381e26179ec1a36edd9d8b07116e3c33e
diff --git a/R/KorAPQuery.R b/R/KorAPQuery.R
index e6f240e..9bab575 100644
--- a/R/KorAPQuery.R
+++ b/R/KorAPQuery.R
@@ -99,20 +99,25 @@
 #' Please make sure to check `$collection$rewrites` to see if any unforeseen access rewrites of the query's virtual corpus had to be performed.
 #'
 #' @examples
+#' \dontrun{
+#'
 #' # Fetch metadata of every query hit for "Ameisenplage" and show a summary
-#' \donttest{
 #' new("KorAPConnection") %>% corpusQuery("Ameisenplage") %>% fetchAll()
 #' }
 #'
+#' \dontrun{
+#'
 #' # Use the copy of a KorAP-web-frontend URL for an API query of "Ameise" in a virtual corpus
 #' # and show the number of query hits (but don't fetch them).
 #'
 #' new("KorAPConnection", verbose = TRUE) %>%
 #'  corpusQuery(KorAPUrl =
 #'    "https://korap.ids-mannheim.de/?q=Ameise&cq=pubDate+since+2017&ql=poliqarp")
+#' }
+#'
+#' \dontrun{
 #'
 #' # Plot the time/frequency curve of "Ameisenplage"
-#' \donttest{
 #' new("KorAPConnection", verbose=TRUE) %>%
 #'   { . ->> kco } %>%
 #'   corpusQuery("Ameisenplage") %>%
@@ -224,7 +229,9 @@
 #' @return The `kqo` input object with updated slots `collectedMatches`, `apiResponse`, `nextStartIndex`, `hasMoreMatches`
 #'
 #' @examples
-#' \donttest{q <- new("KorAPConnection") %>% corpusQuery("Ameisenplage") %>% fetchNext()
+#' \dontrun{
+#'
+#' q <- new("KorAPConnection") %>% corpusQuery("Ameisenplage") %>% fetchNext()
 #' q@collectedMatches
 #' }
 #'
@@ -321,7 +328,8 @@
 #' **`fetchAll`** fetches all results of a KorAP query.
 #'
 #' @examples
-#' \donttest{
+#' \dontrun{
+#'
 #' q <- new("KorAPConnection") %>% corpusQuery("Ameisenplage") %>% fetchAll()
 #' q@collectedMatches
 #' }
@@ -336,7 +344,8 @@
 #' Fetches the remaining results of a KorAP query.
 #'
 #' @examples
-#' \donttest{
+#' \dontrun{
+#'
 #' q <- new("KorAPConnection") %>% corpusQuery("Ameisenplage") %>% fetchRest()
 #' q@collectedMatches
 #' }
@@ -358,7 +367,8 @@
 #' @aliases frequencyQuery
 #' @rdname KorAPQuery-class
 #' @examples
-#' \donttest{
+#' \dontrun{
+#'
 #' new("KorAPConnection", verbose = TRUE) %>%
 #'   frequencyQuery(c("Mücke", "Schnake"), paste0("pubDate in ", 2000:2003))
 #' }