upversion r min version, and survial depednecies (#1408)

# Pull Request

<!--- Replace `#nnn` with your issue link for reference. -->

Fixes #1366

Co-authored-by: Emily de la Rua <emily.de_la_rua@contractors.roche.com>

Author: shajoezhu

DESCRIPTION

@@ -24,7 +24,7 @@ URL: https://insightsengineering.github.io/tern/,
     https://github.com/insightsengineering/tern/
 BugReports: https://github.com/insightsengineering/tern/issues
 Depends:
-    R (>= 3.6),
+    R (>= 4.4.0),
     rtables (>= 0.6.11)
 Imports:
     broom (>= 0.5.4),
@@ -49,7 +49,7 @@ Imports:
     rlang (>= 1.1.0),
     scales (>= 1.2.0),
     stats,
-    survival (>= 3.6-4),
+    survival (>= 3.8-3),
     tibble (>= 2.0.0),
     tidyr (>= 0.8.3),
     utils

tests/testthat/_snaps/coxph.md

@@ -50,7 +50,7 @@
     Code
       res
     Output
-      [1] 1.0000000 1.0000000 0.9678110 0.3970066 0.3252267 0.5286392
+      [1] 1.0000000 0.7521316 0.3858022
 
 ---
 

tests/testthat/test-coxph.R

@@ -45,10 +45,6 @@ testthat::test_that("estimate_coef works correctly", {
 })
 
 testthat::test_that("try_car_anova works correctly", {
-  testthat::skip_if(packageVersion("survival") >= "3.8-3",
-    message = "Skip test is version is greater than 3.8-3, breaking change"
-  )
-
   mod <- survival::coxph(
     formula = survival::Surv(time = futime, event = fustat) ~ factor(rx) + survival::strata(ecog.ps),
     data = survival::ovarian