refactor: replace static with const for global constants (#5260)

Co-authored-by: Daniel García <dani-garcia@users.noreply.github.com>

src/crypto.rs

@@ -6,7 +6,7 @@ use std::num::NonZeroU32;
 use data_encoding::{Encoding, HEXLOWER};
 use ring::{digest, hmac, pbkdf2};
 
-static DIGEST_ALG: pbkdf2::Algorithm = pbkdf2::PBKDF2_HMAC_SHA256;
+const DIGEST_ALG: pbkdf2::Algorithm = pbkdf2::PBKDF2_HMAC_SHA256;
 const OUTPUT_LEN: usize = digest::SHA256_OUTPUT_LEN;
 
 pub fn hash_password(secret: &[u8], salt: &[u8], iterations: u32) -> Vec<u8> {

src/db/models/organization.rs

@@ -87,7 +87,7 @@ impl MembershipType {
 impl Ord for MembershipType {
     fn cmp(&self, other: &MembershipType) -> Ordering {
         // For easy comparison, map each variant to an access level (where 0 is lowest).
-        static ACCESS_LEVEL: [i32; 4] = [
+        const ACCESS_LEVEL: [i32; 4] = [
             3, // Owner
             2, // Admin
             0, // User
@@ -216,7 +216,7 @@ impl Organization {
 // The number 128 should be fine, it is well within the range of an i32
 // The same goes for the database where we only use INTEGER (the same as an i32)
 // It should also provide enough room for 100+ types, which i doubt will ever happen.
-static ACTIVATE_REVOKE_DIFF: i32 = 128;
+const ACTIVATE_REVOKE_DIFF: i32 = 128;
 
 impl Membership {
     pub fn new(user_uuid: UserId, org_uuid: OrganizationId) -> Self {