fix #27554, deprecate try without catch or finally

[JeffBezanson]

fix #27554

[ararslan]

Looks like you'll need

diff --git a/stdlib/LibGit2/test/libgit2.jl b/stdlib/LibGit2/test/libgit2.jl
index 4fa283e..b937bd4 100644
--- a/stdlib/LibGit2/test/libgit2.jl
+++ b/stdlib/LibGit2/test/libgit2.jl
@@ -2694,6 +2694,7 @@ mktempdir() do dir
                 # In some environments, namely Macs, the hostname "macbook.local" is bound
                 # to the external address while "macbook" is bound to the loopback address.
                 pushfirst!(hostnames, replace(gethostname(), r"\..*$" => ""))
+            catch
             end
 
             loopback = ip"127.0.0.1"
diff --git a/stdlib/SHA/test/runtests.jl b/stdlib/SHA/test/runtests.jl
index eee0c26..63a333b 100644
--- a/stdlib/SHA/test/runtests.jl
+++ b/stdlib/SHA/test/runtests.jl
@@ -278,6 +278,7 @@ for f in sha_funcs
         f(UInt32[0x23467, 0x324775])
         warn("Non-UInt8 Arrays should fail")
         nerrors += 1
+    catch
     end
 end
 
@@ -289,4 +290,4 @@ if nerrors == 0
 else
     println("Failed with $nerrors failures")
 end
-@test nerrors == 0
\ No newline at end of file
+@test nerrors == 0
diff --git a/stdlib/SparseArrays/test/sparse.jl b/stdlib/SparseArrays/test/sparse.jl
index 909ce84..d331576 100644
--- a/stdlib/SparseArrays/test/sparse.jl
+++ b/stdlib/SparseArrays/test/sparse.jl
@@ -1065,11 +1065,11 @@ end
 
     A = Matrix{Int}(I, 0, 0)
     S = sparse(A)
-    iA = try argmax(A) end
-    iS = try argmax(S) end
+    iA = try argmax(A); catch; end
+    iS = try argmax(S); catch; end
     @test iA === iS === nothing
-    iA = try argmin(A) end
-    iS = try argmin(S) end
+    iA = try argmin(A); catch; end
+    iS = try argmin(S); catch; end
     @test iA === iS === nothing
 end

[StefanKarpinski]

Triage is in favor.